Rachel McAdams and Ryan Gosling have sparked rumors they have rekindled their relationship.

The 'Mean Girls' star and the 'Half Nelson' actor - who split last April after dating for two years - were reunited at Los Angeles' Green Door lounge, where Ryan made his DJ debut.

An onlooker said: "Rachel and Ryan talked when he was away from the deejay stand. They really looked like good pals. He seemed happy to see her."

Ryan is a big music fan, and has signed up to perform at the exclusive nightclub every Tuesday for the foreseeable future.

A source said: "DJ-ing is a pretty new thing for Ryan. He's been messing around. He's really into music, and he's a fan of the night."

The 27-year-old actor played music from the 40s and 50s and wore a white T-shirt, black trousers and leather motorcycle jacket for his set.

Other celebrities who went to see Ryan's debut included Oscar-nominated actress Catherine Keener, actor and singer Shane West and hockey player Sean Avery.

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