Trey Anastasio hands out cake during Phish’s performance at Madison Square Garden in New York City on December 31st, 2013.
Vampire Weekend perform at SiriusXM Studios in New York City on March 29th, 2013.
Taylor Swift meets a fan in Club Red after her show at the Prudential Center in Newark, New Jersey on March 28th, 2013.
Fans gather as Madame Tussauds New York unveils a new wax figure of Britney Spears on March 26th, 2013 in New York City.
50 Cent presents his headphones and signs autographs at the shopping mall Alexa on March 26th, 2013 in Berlin, Germany.
Carson Daly, Usher and Matt Lauer appear on NBC News' "Today" show in New York City on March 25th, 2013.
Selena Gomez, Katy Perry and Fergie attend Nickelodeon's 26th Annual Kids' Choice Awards in Los Angeles, California on March 23rd, 2013.
Jennifer Lopez and Muhammad Ali attend Muhammad Ali's Celebrity Fight Night XIX at JW Marriott Desert Ridge Resort & Spa in Phoenix, Arizona on March 23rd, 2013.
Fatboy Slim performs at the Ultra Music Festival in Miami, Florida on March 23rd, 2013.
Pitbull performs during Nickelodeon's 26th Annual Kids' Choice Awards in Los Angeles, California on March 23rd, 2013.
Mitch Winehouse and Jennifer Hudson attend the 2013 Amy Winehouse Foundation Inspiration Awards and Gala in New York City on March 21st, 2013.
Chaka Khan celebrates her 60th birthday in Los Angeles, California on March 21st, 2013.
Mark Ronson and Sean Lennon attend the 2013 Amy Winehouse Foundation Inspiration Awards and Gala in New York City on March 21st, 2013.
Afrojack and Calvin Harris perform live on SiriusXM's "UMF Radio" at the SiriusXM Music Lounge at W Hotel in Miami, Florida on March 21st, 2013.
Chad Smith of Red Hot Chili Peppers and Bernie Williams perform during a VH1 Save the Music Foundation event at the Washington Court Hotel in Washington, DC on March 20th, 2013.
An outfit worn by David Bowie is displayed at the "David Bowie is" exhibition at the Victoria and Albert museum in London, England on March 20th, 2013
Zac Brown poses with Goofy at the Magic Kingdom park in Lake Buena Vista, Florida on March 18th, 2013.
Chris Brown joined creative forces with graffiti artist Slick to raise funds for Best Buddies International in Gardena, California on March 15th, 2013.
Billie Joe Armstrong kisses a fan he brought on stage as he performs with Green Day during SXSW at ACL Live in Austin, Texas on March 15th, 2013.
Harry Styles of One Direction poses during a figure sitting where he is measured for a Madame Tussauds wax figure on March 11th, 2013.
Will.i.am visits The Science Museum where he announced The Prince's Trust new STEM (Science, Technology, Engineering and Math) workshops for teens on March 11th, 2013 in London, England.
Omarion, Stally, Rick Ross, Wale and Spiff arrive at the Reebok Classic white party at LIV nightclub in Miami Beach, Florida on March 10th, 2013.
John Mellencamp, T-Bone Burnett, Elvis Costello, and Jeff Bridges attend TJ Martell Honors Gala at Hutton Hotel in Nashville, Tennessee on March 10th, 2013.
Katy Perry attends a hockey game between the Calgary Flames and Los Angeles Kings at the Staples Center in Los Angeles, California on March 9th, 2013 .
Questlove, Maya Rudolph and Fred Armisen hang out backstage at City Winery on March 6th, 2013 after a rehearsal for the Tribute to Prince concert that will take place at Carnegie Hall in New York on March 7th.
Justin Timberlake and Kenan Thompson backstage during rehearsal for Saturday Night Live at NBC Studios in New York on March 5th, 2013. Justin Timberlake will be the host and musical guest in this weeks upcoming episode.
Ian Hultquist, Michael Angelakos and Jeff Apruzzese of Passion Pit pose at Cafe Vita before their performance at The Paramount Theater in Seattle, Washington on March 5th, 2013.
Novak Djokovic, Jeremy Piven, Redfoo and Mardy Fish attend The 9th Annual K-Swiss Desert Smash Charity Tennis Event at La Quinta Resort and Club in La Quinta, California on March 5th, 2013.
Paul McCartney and Bono attend the Stella McCartney Fall/Winter 2013 Ready-to-Wear show during Paris Fashion Week in Paris, France on March 4th, 2013.
Steve Angello, Axwell and Sebastian Ingrosso of Swedish House Mafia light The Empire State Building in New York City on February 28th, 2013.
Lucinda Williams and Boz Scaggs pose during Petty Fest at The Fillmore in San Francisco, California on February 27th, 2013
Ronnie Wood poses with the Best Live Band and Best Music Film Awards at the NME Awards in London, England on February 27th, 2013.
Madeon performs at the New York Stock Exchange during the 5th Annual Kairos Society Summit in New York on February 23rd, 2013.