Actor joined by Jenna Elfman, Laura Prepon at 44th annual gala.

Saturday night was hopping for some of Hollywood’s most famous Scientologists.

John Travolta and a host of other celebrity devotees of Scientology got gussied up in their finest for the Church of Scientology Celebrity Centre 44th Anniversary Gala in L.A.

Travolta and his wife, Kelly Preston, were joined at the gala by friends and fellow Scientologists like Orange is the New Black’s Laura Prepon, Jenna Elfman, Erika Christensen, Anne Archer, Chick Corea and Michael Pena.

The gala wasn’t the only exciting thing on Travolta’s agenda this weekend, though. On Friday night, he stopped by The Academy Of Motion Picture Arts And Sciences to host an outdoor screening of his classic breakout film Grease.

Celebrity Centre 44th Anniversary Gala on Aug. 24