Katy Perry

"Roar" singer Katy Perry partied it up at the Universal Music Group post-Grammy shindig.
"Roar" singer Katy Perry partied it up at the Universal Music Group post-Grammy shindig.
The Grammy-award winning singer sang a few tunes from his album, Kaleidescope Dream, at Wednesday's pre-Grammy party.
Actress Anna Kendrick, who presented best new artist to Macklemore & Ryan Lewis during the telecast, attended the Universal Music Group's afterparty.
Though Calvin Harris, who was nominated for two Grammys, came up empty-handed, the Scottish producer/DJ lived it up at the Universal Music Group afterparty.
Rihanna smiled upon arriving at the Roc Nation Pre-Grammy Brunch Celebration on Jan. 25.
Socialite and DJ Paris Hilton took in the post-Grammy festivities at the Republic Records shindig.
Siblings Willow Smith and Jaden Smith posed at the Roc Nation 2014 Pre-Grammy Brunch Celebration on Jan. 25.
Country artist Kacey Musgraves, who won Grammys for best country song and best country album, smiled for the cameras at the Universal Music Group post-Grammy party on Jan. 26.
Rita Ora posed at the Roc Nation Pre-Grammy Brunch Celebration on Jan. 25.
Drake handles DJ duties at the Greystone Manor on Grammy night.
Imagine Dragons performed at the exclusive event for Citi cardholders to benefit the Grammy Foundation.
Universal Music Group chairman and CEO Lucian Grainge, who was presented the President's Merit Award, smiled for photographers on the red carpet of the group's post-Grammy party.
Pat Monahan of Train serenaded MusiCares 2014 person of the year Carole King at the tribute party on Jan. 24.
Alicia Keys performed Carole King's "Natural Woman" at the MusiCares 2014 Person of the Year Tribute on Jan. 24.
Ahead of her acrobatic Grammy performance, Pink sang for Carole King at the MusiCares 2014 Person of the Year Tribute on Jan. 24.
Natasha Bedingfield, wearing a splash of color, walked the carpet at the Universal Music Group post-Grammy party at the Ace Hotel Theater on Jan. 26.
Mayer Hawthorne donned a velvet tux at the Republic Records post-Grammy party.
Rock band Imagine Dragons, who performed at the Grammys with Kendrick Lamar, walked the carpet at the Universal Music Group post-Grammy party at the Ace Hotel Theater.
Ashanti showed off her toned arms and legs with a short dress at the Universal Music Group post-Grammy party.
Audrey Napoleon kept it simple in all black at Pandora's post-Grammy party.
A pregnant Ciara performed at the official Grammy afterparty following the nearly four-hour telecast.
Former The Hills star Audrina Patridge stopped by the Republic Records Grammy afterparty.
Austin Mahone suited up for the Universal Music Group Grammy afterparty.
Glee star Darren Criss kept it chic at the 2nd annual Billboard Grammy afterparty at The London in West Hollywood.
Former American Idol contestant Pia Toscano turned heads in red at Red Light Management's post-Grammy party at the Mondrian's SkyBar.
Model Karissa Rosario attended Pandora's Grammy afterparty at Create.
Singer Raquel Houghton attended Billboard's Grammy afterparty at The London.
Rita Ora looked dashing in white inside the Universal Music Group afterparty.
The Universal Music Group afterparty saw several big music names, including Skrillex.
Smokey Robinson, who presented during the telecast, and Keith Urban, who performed, caught up at the Universal Music Group afterparty.
Trey Songz and Meek Mill attended the official Grammy afterparty.
Modern Family star Ariel Winter celebrated on Grammy weekend at Red Light Management's afterparty at the Mondrian.
Actress Victoria Justice attended Red Light Management's Grammy afterparty.
Indie pop band Youngblood Hawke attended Republic Records' post-Grammy party at 1 OAK on Jan. 26 in West Hollywood.
DJ Caroline D'Amore posed at Levi's Pre-Grammy party where R&B musician Miguel took the stage at The Fonda Theater on Jan. 22.
Comedian Kathy Griffin, who joked about Justin Bieber's "relax juice" during the Grammy pre-telecast, enjoyed herself at the Universal Music Group afterparty.
Michele, left, and Fox also attended the 5th Annual ESSENCE Black Women in Music reception at 1 Oak.
Emeli Sande gave a special honoree performance captivating many in the audience at the 5th Annual ESSENCE Black Women in Music reception.
Williams, left, and Atkins-Campbell were among the stars who attended the 5th Annual ESSENCE Black Women in Music reception.
Williams rocked a black-and-white jumpsuit at 1 Oak's 5th Annual ESSENCE Black Women in Music Event.
Macklemore and Ryan Lewis performed at the T-Mobile concert at Downtown's Belasco Theatre on Jan. 23.
Ahead of their onstage duet at the Grammys, Sara Bareilles performed for Carole King at the MusiCares Person of the Year Tribute on Jan. 24.
Director of writer and publisher relations Malik Levy, BMI CEO Michael O'Neil and Wardell Malloy, senior director of writer/publisher relations at BMI seen at BMI Presents: How I Wrote That Song at the House of Blues on Jan. 25.
T.I. greeted the crowd at the Roc Nation 2014 Pre-Grammy Brunch Celebration on Jan. 25.
From left: BMI songwriters Dallas Davidson, Wiz Khalifa, Alex Da Kid, Charlie Wilson and Linda Perry at BMI Presents: How I Wrote That Song bash at the House of Blues on Jan. 25.
James Taylor performed for Carole King at the MusiCares 2014 Person of the Year Tribute on Jan. 24.
Interscope's John Janick, Aloe Blacc and Steve Berman at Universal Music's luncheon and showcase held Jan. 25 in Hollywood.
Miranda Lambert sang at the MusiCares 2014 Person of the Year Tribute to Carole King on Jan. 24.
LeAnn Rimes and Steven Tyler performed a cover of the Carole King/Gerry Goffin co-penned "Hi-De-Ho" at the MusiCares 2014 Person of the Year Tribute on Jan. 24.
Still relatively new to the Universal Music Group family, Katy Perry poses with Lucian Grainge at the UMG Grammy afterparty.
Rihanna hit the Young Money Cash Money Records bash at Greystone Manor on Grammy night, where she partied with host Lil Wayne. Also in attendance: Drake, Paris Hilton, Birdman, Nicki Minaj, 2 Chainz, Kevin Hart, Wiz Khalifa and Amber Rose.
Imagine Dragons celebrated with Interscope Geffen A&M chairman Jimmy Iovine at the Universal Music Group afterparty, held at the Ace Hotel in downtown L.A.
Grammy nominee Armin van Buuren celebrated at Sound Nightclub on Jan. 26 following the Grammys with the help of Heineken.
Adam Holt, chairman of Universal Music Group New Zealand, Max Hole, chairman & CEO of UMG International, Lorde and UMG chairman Lucian Grainge partied at the Ace Hotel on Grammy night.
Aerosmith's Steven Tyler took the stage at the Republic Records Grammy after-arty held at 1 OAK.
Ne-Yo walks the red carpet outside of 1 OAK for the Republic Records Grammy after-party. Soon after, the Birdman and the Cash Money crew rolled in with an entourage 40 people-deep.
Russell Simmons arrives at the Republic Records Grammy afterparty at 1 OAK.
Wealth advisor Ted Reid hosted guests including Universal EVP Chuck Ciongoli at his annual pre-Grammy reception held at L'Ermitage in Beverly Hills.