Trey Anastasio hands out cake during Phish’s performance at Madison Square Garden in New York City on December 31st, 2013.
Jennifer Lopez debuts the Jennifer Lopez for Kohl's Fall 2013 Collection at Gary's Loft in New York City on May 14th, 2013.
Lil Jon and Lisa Rinna share a laugh on Late Night with Jimmy Fallon in New York City on May 13th, 2013.
Iggy Pop attends the "El Hormiguero" Tv show at Vertice Studio in Madrid, Spain on May 13th, 2013.
LL Cool J attends Gray Line New York's "Ride Of Fame" Induction Ceremony Honoring LL Cool J at Pier 78 in New York City on May 13, 2013.
Ziggy Marley rides a motorcycle during the Marley Africa Road Trip at Newcomb's Ranch Roadhouse in La Canada-Flintridge, California on May 10th, 2013.
Zakk Wylde performs the "Star-Spangled Banner" at the opening of the Red Bull X Fighters event at Glen Helen Raceway in San Bernardino, California on May 11th, 2013.
Elvis Costello, Lisa Loeb, and Burt Bacharach attend SiriusXM's Town Hall With Burt Bacharach at SiriusXM Studios in New York City on May 7th, 2013.
Robby Takac, John Rzeznik and Mike Malinin attend a ceremony inducting The Goo Goo Dolls into the Guitar Center RockWalk at Guitar Center in Hollywood, California on May 7th, 2013.
Pete Wentz, Patrick Stump, Joe Trohman and Andy Hurley of Fall Out Boy pose with Magic Johnson backstage at The Tonight Show with Jay Leno in Los Angeles, California on May 3rd, 2013.
Adam Levine attends the 6th annual George Lopez celebrity golf classic & Mercedes-Benz dealer championship at Lakeside Golf Club in Toluca Lake, California on May 6th, 2013.
Pete Wentz of Fall Out Boy and son Bronx attend the screening of 'Star Wars: Return of the Jedi' at the Egyptian Theatre on May 4th, 2013 in Hollywood, California.
Rihanna attends the Chicago Bulls Vs Brooklyn Nets Playoff Game at the Barclays Center on May 4th, 2013 in Brooklyn, New York.
Jennifer Lopez shoots a video on May 5th, 2013 in Fort Lauderdale, Florida.
Mick Jagger and Gwen Stefani perform during the Rolling Stones '50 & Counting' tour opener at Staples Center on May 3rd, 2013 in Los Angeles, California.
Adrian Benepe, Noel Yauch, Frances Yauch, Adam Horovitz, Rachael Horovitz and Marty Markowitz attend the renaming of Palmetto Playground as Adam Yauch Park on May 3rd, 2013 in the Brooklyn, New York.
Steven Tyler poses with the character Nim Galuu that is voiced by him in the animated film Epic at the Crown Towers in Melbourne, Australia on May 3rd, 2013.
Katy Perry and Cyndi Lauper pose backstage at the hit musical "Kinky Boots" on Broadway at the Al Hirshfeld Theater in New York on May 1st, 2013.
Psy makes an appearance during the fourth inning of a MLB game between the Colorado Rockies and Los Angeles Dodger at Dodger Stadium in Los Angeles on April 30th, 2013.
Chef Mario Batali and Jon Bon Jovi attend the Food Bank for New York City's Can-Do Awards in New York City on April 30th, 2013.
Bruce Springsteen talks to the press before his concert at the Telenor Arena in Oslo, Norway on April 29th, 2013.
Wyclef Jean steps out of the photo booth at SiriusXM studios with a guitar designed by artist Jimmy Diresta in New York on April 30th, 2013.
A mourner prays over jewelry and an urn filled with the ashes of Richie Havens during a public memorial service held at City Winery in New York on April 29th, 2013.
Billie Joe Armstrong, Tre Cool and Mike Dirnt of Green Day pose with some young fans during the Newport Beach Film Festival Opening Night Gala Premiere of Broadway Idiot in Newport Beach, California on April 25th, 2013.
Morrison Hotel Gallery co-founder Peter Blachley, musician Graham Nash and Rock n' Roll photographers Henry Diltz and Bob Gruen attend the opening of Graham Nash's photo exhibit at the Morrison Hotel Gallery in New York on April 25th, 2013.
Questlove of the Roots takes a quick moment to do some iPhoning while in the middle of a drum solo during the Crossing Brooklyn Ferry Festival at Brooklyn Academy of Music in New York on April 25th, 2013.
Snoop Lion (née Dogg) surprises the audience during SiriusXM's Town Hall with Cheech and Chong at the SiriusXM Studios in New York on April 25th, 2013.
Justin Bieber arrives to the Grand Hotel in Stockhold, Sweden wearing a Chanel mask and a hat on April 22nd, 2013.
Jimmy Fallon, Justin Timberlake and Frank Ocean attend the TIME 100 Gala, TIME'S 100 Most Influential People In The World in New York City on April 23rd, 2013.
The Backstreet Boys celebrate their 20 year career with a Star on the Hollywood Walk of Fame in Hollywood, California on April 22nd, 2013.
Richard Branson welcomes Joe Jonas to his flight in Los Angeles, California on April 22nd, 2013.
Katy Perry attends "The Smurfs 2" photocall at The 5th Annual Summer Of Sony in Cancun, Mexico on April 22nd, 2013.
Mark Wahlberg and Denzel Washington attend the "2 Guns" photocall at the 5th Annual Summer Of Sony in Cancun, Mexico on April 20th, 2013.
Jeff Beck plays guitar with Rock 'n' Roll Fantasy Camp campers in Las Vegas, Nevada on April 20th, 2013.
Xzibit performs during the 93.5 K-Day Krush Groove in Universal City, California on April 20th, 2013.
Darryl McDaniels, Geddy Lee and musician Tom Morello attend the 28th Annual Rock and Roll Hall of Fame Induction Ceremony in Los Angeles, California on April 18th, 2013.
Fans kiss the wax figure of Harry Styles from One Direction at Madame Tussauds in London, England on April 18th, 2013.
Matthew Bellamy and Dominic Howard of Muse play ping pong during the first-ever "Alt Nation Ping Pong Throwdown" at the SiriusXM studios in New York City April 16th, 2013.
Bruce Springsteen, Sting and Robert De Niro pose with Rita Wilson backstage following her performance at 54 Below in New York City on April 15th, 2013.
Bono and John Legend chat during Studio Africa at Indio Valley presented by DIESEL+EDUN in collaboration with the Rolling Stone Rock room in Indio, California on April 12th, 2013.
Billie Joe Armstrong of Green Day takes a photo with a fan onstage at Air Canada Centre in Toronto, Canada on April 11th, 2013.
Ronnie Wood unveils his new collection of fine art 'Ronnie Wood: Raw Instinct' at Castle Fine Art in London, England on April 11th, 2013.
The Jonas Brothers meet Sara (Jimmy Fallon), during a skit on Late Night with Jimmy Fallon in New York City on April 9th, 2013.
Katy Perry visits a pre-school in the village of Sahavola in Analanjirofo Region, Madagascar with UNICEF on April 5th, 2013.
Mark Ronson and A-Trak join forces at the Red Bull Thre3Style National Finals at LURE nightclub in in Los Angeles, California on April 5th,2013.
Jay-Z and Beyonce take pictures from the balcony of the Saratoga Hotel in Havana, Cuba on April 5th, 2013.
Wayne Coyne relaxes during The Flaming Lips' listening party for their new album, The Terror, at The General in New York City on April 3rd, 2013.
Lance Bass makes a cameo appearance during New Kids On The Block's interview at SiriusXM studios in New York City on April 3rd, 2013.
Jim Kemp works on the clay head of Harry Styles' Madame Tussauds sculpture on April 3rd, 2013.
Madonna sits with her children at Mkoko Primary School, one of the schools Madonna's Raising Malawi organization has built jointly with US organization BuildOn on April 2nd, 2013.
Yoko Ono and Autism Speaks co-founder Bob Wright switch on the lights at the Empire State Building for World Autism Awareness Day in New York on April 2nd, 2013.