The Grammy Awards  brought some of the biggest names in music together in LA last night, but the afterparties got those stars in a celebratory mood. Rihanna  changed out of the custom Azzedine Alaïa frock she wore to the big event and into a belly-baring white dress to attend an afterparty at the Supperclub with Chris Brown . Meanwhile, Justin Timberlake  hosted a private event at the Hollywood Palladium, where he performed in front of an excited crowd. His post-Grammys show would mark one of several gigs that night — he also made a splashy return to performing on TV at the Grammys earlier that evening. Justin and Rihanna 's parties weren't the only big shindigs for the night. Selena Gomez , Katy Perry , John Mayer , and Lena Dunham were all spotted enjoying the town after the Grammys festivities.
Rihanna  wore white to a Grammys afterparty.
Justin Timberlake  performed at a post-Grammy Awards shindig at the Hollywood Palladium .
Selena Gomez  left a Grammys afterparty on the arm of director Alfredo Flores.
Rihanna  attended a Grammys afterparty in a white dress.
Sting and Adam Levine hung out at the Maroon 5 Grammys afterparty.
Lena Dunham took off her heels outside a Grammys afterparty in Hollywood.
Kelly Rowland attended an event with Nelly and Akon at the Emerson Theater in Hollywood.
Rihanna  arrived with Chris Brown .
Justin Timberlake  played the guitar.
Rihanna  attended a Grammys afterparty with Chris Brown .
Grammy winner Kimbra smiled outside a post-Grammys bash in Hollywood.
Rihanna  arrived at an afterparty alongside Chris Brown .
Cheryl Burke wore a yellow fringe dress to a Grammys afterparty.
Rihanna  arrived at a Grammys afterparty wearing a white outfit.
Justin Timberlake  sang at a Grammys afterparty.
Rihanna  wore a white outfit for a Grammys afterparty.