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"Is this what happens at the U.N. every Friday night?" Anderson Cooper jokingly asked the crowd seated in the General Assembly Hall of the United Nations on Friday (August 10). "Because, I've gotta tell you ... I wanna be here every Friday night if this goes on."

The news anchor was referring to members of the organization and their invited guests who were gathered for a special event leading up to World Humanitarian Day, quickly approaching on Saturday. Cooper, himself a humanitarian in many respects, was on hand to host a series of interviews with local and international humanitarians that would eventually lead into a performance from Beyoncé.

The 30-year-old star had appeared at the United Nations earlier in the day, where she rehearsed her performance of "I Was Here" and met with members of the United Nations. Now, at 8 p.m. ET on Friday night, Deputy Secretary General Jan Eliasson made his way to the stage welcoming everyone to the General Assembly Hall and giving an early introduction of Beyoncé.

"Tonight brings more than her stunning talents; she brings inspiration to help another person, to help another human being," he told the crowd, going on to describe "I Was Here" as a "profound and moving song." When he slipped on the title for a second, calling the song "I Was There," it became evident that there were some Bey stans in the audience. They quickly corrected him and joined him in laughing it off, while he added, "in fact 'here' and 'there' is the same thing — that's solidarity."

Jay-Z and Beyoncé are all about baby Blue Ivy Carter these days, but that doesn't mean hip-hop's royal couple doesn't still spend the occasional night on the town! On Monday, Hov and Bey hit up the MoĂ«t Rosé Lounge in New York City to celebrate Nas' new album Life Is Good. Beyoncé, 30, sipped on MoĂ«t, and danced "by herself" in the corner! Her hubby Jay-Z, 42, took a shot of tequila with his foe-turned-friend Nas. These two used to have a major feud, but from the looks of things last night, it's all water under the bridge. Also in attendance at Monday night's fête? Busta Rhymes, Jermaine Dupri, Eric Benet, Tyson Beckford and Adrienne Bailon.

Singer Beyonce attends the 2012 BET Awards at The Shrine Auditorium on July 1, 2012 in Los Angeles, California.

Nicholas Kirkwood‘s shoes have appeared on the feet of some of the hottest names in entertainment, but he still got a little starstruck when he saw that Beyoncé wore his glitter satin sandals ($1,265 at mytheresa.com) to a dinner hosted by Michelle Obama. “I think Beyoncé looked great!” the designer told us at the opening of his Manhattan store. “How could you not be excited to see Beyoncé in your shoes?” While Beyoncé is a pro at walking in high heels, Kirkwood knows that every woman has their own heel height preference. “Heels can be quite wibbly wobbly,” he said. “Some of my clients can literally wear them all day. Some girls are so used to wearing heels it’s almost more painful to wear flats.”

Beyonce Knowles attends the 'Schiaparelli And Prada: Impossible Conversations' Costume Institute Gala at the Metropolitan Museum of Art on May 7, 2012 in New York City.

Beyonce attends Antonio 'L.A.' Reid's book launch event for his wife Erica Reid's book 'The Thriving Child' at private residence on May 8, 2012 in New York City.

Beyonce was seen out with Jay-Z at Rita Ora's show in New York last night (12th April). The 'Crazy In Love' singer was enjoying an evening with her husband and left baby Blue Ivy at home as she attended the show at the Skylight studios and headed to the after party at the Cartier Juste un Clou. The star kept her attire casual with a simple cream baggy fitting jumper and bright red lipstick. You can view pictures of Beyonce at the after party in New York below.

Beyoncé out in New York City on March 19, with her mom, committee member Miss Tina Knowles, and her mother-in-law Ms. Gloria Carter to attend an intimate cocktail party with First Lady Michelle Obama. The reception is a fundraiser for President Obama’s re-election campaign. Last year Beyoncé worked closely with the First Lady on Lets Move to fight childhood obesity.

A-list stars including the likes of Oprah Winfrey, Beyoncé, Jay-Z, Elton John, Aretha Franklin, Bill Cosby, Kevin Costner, and David Bowie will be among those in the pews at Whitney Houston’s funeral at Newark, New Jersey’s New Hope Baptist Church on Saturday, and RadarOnline.com will live stream the service beginning at noon EST. "It’s going to be a ceremony that reflects her life," New Hope church Pastor Joe A. Carter told the New Jersey Star-Ledger. "A celebration of Whitney’s life, with the participation of many people who are very important in Whitney’s life." Scheduled speakers for Saturday’s memorial include Houston’s The Bodyguard co-star Kevin Costner, who personally chose her for the role; her cousin, Dionne Warwick; acclaimed director Tyler Perry; and her ace producer Clive Davis. In addition, Aretha Franklin, Stevie Wonder, Alicia Keys and R. Kelly are slated to sing at the service, following which, Houston will be buried at Fair View Cemetery in Westfield, New Jersey, which is where her father is also laid to rest. Houston’s ex-husband, Bobby Brown, as well as their 18-year-old daughter Bobbi Kristina, will attend the service; afterwards, Brown will head off to headline a concert with New Edition in Connecticut that very same day. The area around the church will be cordoned off several blocks to the public, according to the paper. Grammy Award-winning gospel singer and Houston family friend Marvin Winans, who presided over Houston’s 1992 wedding to Brown, will deliver the eulogy for the hit-maker, who died Saturday at the Beverly Hills Hilton at 48.

This manicure is dedicated to...Blue Ivy! Donning a bright blue dress for her first public appearance since she gave birth to daughter Blue Ivy a month ago may have been overkill, so instead, new mom Beyonce Knowles rocked a bright cobalt nail polish on her fingers in honor of her and Jay-Z's first-born daughter. In NYC Monday, the 30-year-old new mom sported Nails Inc. in Baker Street (out in March at Sephora) with her red-hot Alice by Temperley form-fitting dress at her hubby's Carnegie Hall concert after party at his newly reopened 40/40 Club. "Check out Beyonce's blue nails called Baker Street by Nails Inc. I love this color!" Lisa Logan, Beyonce's manicurist, tweeted on Tuesday afternoon. Since the hue isn't out yet you can try copying Bey's mani with L'Oreal Paris Colour Riche Nail Polish in "Jet Set to Paris." ($5.99, lorealparis.com) The azure lacquer wasn't the only way the songstress was feeling blue -- she also donned a giant, sapphire sparkler on her pointer finger. It was a late night for Beyonce and her man, both of which stayed out until 4:30 a.m. "They were sitting on the top tier of same seating the entire night, just laughing, eating food -- the chef at the club is Jay-Z's personal chef as well and he sent out salads to them at 2:30 a.m.," a source tells Us Weekly. "Beyonce did have a martini at another point in the night, but she barely sipped it." "Towards the end of the night she was sitting with two of her friends and took out her phone," the source adds. "She was showing them pictures -- she was gushing and smiling and her friends were doing the same. She was very happy to be there, she had a lot of security."

Beyonce Knowles picked a very special occasion for her first post-baby outing. Four weeks after giving birth, the 16-time Grammy winner supported her husband Jay-Z at his Carnegie Hall concert in Manhattan, which benefited The United Way of New York City and his Shawn Carter Foundation. The new mom showed off her svelte body in a body-hugging Alice by Temperley dress with Ofira & Lorraine Schwartz jewelry, an Alexander McQueen clutch, and Christian Louboutin platform heels. Post-show, A-list guests hit up Jay-Z's 40/40 club for the official after-party. Knowles was clearly enjoying her night off, arriving half an hour after her hip-hop husband, 42, walked the red carpet. "She made a much bigger effort to say hello to nearly everyone, making rounds around the whole club before joining Jay-Z and guests in the VIP room," an onlooker tells Us. Neither Knowles nor Jay-Z (real name: Shawn Carter) spoke to reporters. Knowles opted not to imbibe at the after-party, instead sucking on lemon wedges throughout most of the evening. Other attendees included Brooklyn Decker, Melanie Fiona and Angie Martinez.

Less than two weeks after delivering baby Blue Ivy, Beyoncé is trading diaper duty for the red carpet. Queen B will make her first post-baby appearance at the grand reopening of hubby Jay-Zs 40/40 Club Wednesday night, a source close to the crooning couple told the Daily News. All eyes will be on the shapely singer's motherly silhouette as stars including Alex Rodriguez, CC Sabathia, Victor Cruz, Swizz Beatz and New York Knick Baron Davis offer their congratulations. The Manhattan clubs new $10 million renovation includes four gargantuan, state-of-the-art 165-inch video screens and golden bats lining the walls of banquettes. "I wanted to retain the feel of a clubhouse, a relaxed place to interact with friends," Jay-Z told The News. Hova's new hideaway is open to the public, but VIPs can pay for $1,000 memberships with preferred access to private rooms.

"American Idol" host and New Year's Eve ambassador Ryan Seacrest dished with "Extra's" AJ Calloway about what to expect on this year's 40th "New Year's Rockin' Eve" show - including a surprise appearance by Beyoncé! "You will see Beyoncé on the show," said Seacrest. "I can't tell you too much because they don't tell me too much, but if you're a Beyoncé fan -- and man, is she looking good these days -- you'll want to see Beyoncé." Seacrest is excited about this year's 40th anniversary lineup, which includes Justin Bieber and Pitbull. The TV host said, "We try and celebrate some of the biggest artists of the year and then we've got the biggest artists of the year to celebrate with us. We'll look back at the 40 biggest performances," which will include Dick Clark, who is set to make an appearance. "Yes, Dick Clark will be back," said Seacrest, laughing, "Some of those moments are him freezing outside and he still kind of wishes that I'd be very, very cold outside. Lady Gaga is also set to perform AND to help drop the ball. Seacrest explained, "It's tricky. She'll finish her performance and then she'll have a team of NYPD rushing her. She'll physically have to get from one place to the next to get to where the ball's dropped, and I think that will be tight on time, but quite an honor!" Watch all the ball-droppin' action when "New Year's Rockin' Eve" airs Saturday on ABC!

Jay-Z is eating like a pregnant woman! The 42-year-old dad-to-be is supporting Beyonce by dieting with her. A source tells the new Us Weekly -- on stands Friday -- that the duo are maintaining a "partially vegan diet." "Jay's trying to be disciplined, and he needs the energy to support her," a source adds. Beyonce, 30, isn't going to let herself go just because she's expecting! "I've been really conscious ," she told 20/20. "I've been trying my best not to lose control!" Jay and Bey's commitment to healthy living seems to be paying off. A source tells Us that Monday night the duo were "dancing up a storm" at The Spare Room gaming lounge at the Hollywood Roosevelt. "They were loved up and sweet together partied until 4 a.m.!" The next night, Beyonce and Jay-Z partied once again! This time, the couple hung out with Serena Williams, Kanye West and friends at Watch The Throne's after party.

Beyonce hosts the screening of "Live at Roseland: Elements of 4" at the Paris Theatre on November 20, 2011 in New York City.