The songbird arrived at the restaurant around 11:30 p.m. for Wilmer Valderrama's karaoke night with a group of girlfriends in tow.
“She came through the back with her sunglasses on and went straight upstairs," a source tells E! News. "She sat in a corner booth with her girlfriends and security and was having a good time.”
So did she sing away the blues?
While she opted not to perform karaoke, she seemed to be in a good mood despite her recent drama.
“She was not dancing but was really friendly, and smiling," the source says. "She looked so pretty.”
In a show of support, Wilmer sent over a bottle of champagne to her table. She raised a toast but didn't drink very much, according to the source, who then observed Rihanna leaving around 2 a.m.
It was on Tuesday that she celebrated her 21st birthday at Coco de Ville sans Chris. Does this mean she's reconsidering her reconciliation with him? We hope so!
—Reporting by Whitney English