Sia has been spotted on a dinner date with Courteney Cox and Jennifer Aniston. Source: Splash News Australia

The singer was spotted dining out with Jennifer Aniston and Courteney Cox at Italian restaurant, Il Piccolino, according to E! Online.

Courteney joined Sia and Jen. Source: Splash News Australia

The friends dined at Il Piccolino in LA. Source: Splash News Australia

US comedian, Whitney Cummings, also joined the trio for the dinner.

Sia who normally hides her face from view with a blonde wig or a headpiece, wasn’t shy about being seen on the night out, wearing an electric blue jumpsuit and matching blue shoes.

Jen kept a low profile as security escorted her to her car. Source: Splash News Australia

The singer has a song on the soundtrack to the upcoming blockbuster movie, San Andreas.

She covers the Mamas and the Papas hit, “California Dreamin’”.

San Andreas is currently showing in Australian cinemas.