Pictures of Celebrities Mingling Inside 2013 Grammy Awards

Today's Grammy Awards in LA gave music's biggest names a chance to mingle inside the show once the red carpet wrapped up. Jennifer Lopez and Casper Smart laughed it up with Nicole Kidman and Keith Urban in the audience. Portia de Rossi and Ellen DeGeneres got goofy with Katy Perry, who also hung out with pal Allison Williams in the crowd. Ellen met up with Adele backstage and Lena Dunham shared a moment with Taylor Swift. Click through for more fun moments from the Grammys!