Justin Timberlake recently split from Cameron Diaz after three and a half years together, and though it's been reoprted he has a new love already, but at a recent Hollywood premiere there was no sign of a new young lady on Justin's arm. Instead, he brought mum Lynn to the premiere of his new film Alpha Dog. In the film, Justin plays a member of a drug dealing gang. Following the premiere, the star and his mother attended the after-party at Ivar, where he posed for photographs in the VIP section. Timberlake and his mother later arrived at the club Social Hollywood, where they met up with Scarlett Johansson. Later, Justin hung out with co-stars Emile Hirsch, Ben Foster and Olivia Wilde. | 
