Adam Lambert and Boyfriend Break Up

American Idol runner-up and budding pop star Adam Lambert split from his boyfriend, interior designer Drake LaBry, in a breakup that a source calls a mutual decision.

An anonymous source close to the ex-couple shared the news with the blog Just Jared, which reported the breakup on Saturday.

"The relationship just ran its course," the source told Just Jared. "The breakup was mutual and amicable. They remain friends and still care for each other."

His newly single status did not prevent Lambert from celebrating Halloween, however. He dressed as a glammed-out vampire and partied with pal Katy Perry, according to Just Jared.