Beyonce Knowles Performs at White House for Michelle Obama's 50th Birthday

Queen Bey is accompanied by her adorable daughter Blue Ivy who is seen playing with the Obamas' dog Sunny in one of the pictures shared online.

Beyonce Knowles was one of the stars helping celebrate Michelle Obama's 50th birthday on Saturday, January 18. She donned a mini flapper dress and nude pumps to perform a special set in front of star-studded guests for the private party held at the White House.

The singer brought her daughter, Blue Ivy, who just celebrated her second birthday. The toddler looking adorable in a white frilly gown admired the First Family's Christmas tree in one of the pics posted on Queen Bey's Tumblr, and played with the Obamas' dog Sunny in another photo.

The other famous attendees included Paul McCartney and spouse Nancy Shevell, Samuel L. Jackson, Bill and Hillary Clinton, Mary J. Blige, John Legend and new wife Chrissy Teigen, Ashley Judd, Angela Bassett, Gayle King, Smokey Robinson, Gladys Knight, and Steve Harvey.

The likes of Michael Kors, Rachael Ray, Al Roker, Sheryl Sandberg, Stevie Wonder, and Jennifer Hudson came to the celebration as well. "We had such a good time with the 1st family in dc tonight!" the "American Idol" alum gushed.

DJ Cassidy played music after live performances from the musical guests ended. President Barack Obama reportedly delivered an emotional speech to his birthday wife and, at one point, got down on to the dance floor to teach his guests how to do "The Dougie."

Harry Styles Supports Zach Braff's 'Wish I Was Here' Premiere at Sundance

Kate Hudson and Ashley Greene join the One Directions member to support the crowd-funded comedy drama in Park City, Utah.

Harry Styles was among the celebrity guests at the premiere of Zach Braff starrer "Wish I Was Here" at Sundance Film Festival on Saturday evening, January 18 at the Marc Theatre in Park City, Utah. The British heartthrob was mobbed by One Direction's fans at the event.

The 19-year-old boybander donned a casual sweater and jeans combo topped with a navy Saint Laurent coat from the other night when he watched Eagles' concert in Los Angeles. "Today I watched @WIWHFilm. I wasn't crying, I had sweaty eyes. Loved it," he tweeted.

Kathy Griffin, who was seated next to Harry at the concert, previously boasted that she stole the teen star's coat while he was distracted by Kendall Jenner and even posted on her social media a picture of herself wearing the coat. "U know where to find me...," the anchor joked.

Harry came to the Sundance Film Festival without his rumored lady love though. He was joined by Zach and his beautiful co-stars Kate Hudson and Ashley Greene. "Congratulations to @zachbraff and @BraffAdam on a lovely movie.. They're brothers," the young singer wrote.

Directed by Zach and co-written by the "Scrubs" star and his brother Adam Braff, the comedy drama follows a struggling actor, father and husband who is trying to find the purpose of his life at the age of 35. The Kickstarter-funded pic is acquired by Focus Features with approximately $2.75 million.

Miley Cyrus Fake Booking Agent Sued by Concert Promoters

The 'Wrecking Ball' singer did not show up at Miami South Beach Outdoor Festival on New Year's Day but the festival organizers said they had sent $125K to a woman claiming to be Cyrus' booking agent.

Miley Cyrus was caught in a concert lawsuit involving a possibly bogus booking agent. Promoters of Miami South Beach Outdoor Festival sued a woman who had received $125K from the company but failed to deliver the singer for the New Year's Day bash.

The festival organizers claimed to have wired the money to the account of the woman whom they believed to be representing the "We Can't Stop" singer. But Cyrus never showed up for the gig and the possibly fake booking agent reportedly cleaned out the bank account.

The woman tells TMZ that she does not work for Cyrus but was acting as an intermediary. She claims to have forwarded the money to Cyrus' real agents. The pop star's representatives, however, deny any involvement in the case and say that the woman sued by the concert promoters has no connection to the 21-year-old songstress' actual booking agent.