Lambert and longtime boyfriend Drake LaBry have called it quits, according to several online reports.
"It was mainly because Adam's life is so hectic. He needs to focus on his career right now," a friend of Lambert's told People.
Meanwhile, a source told Us Weekly the two remain friendly despite the split.
"They're still friends, and it's totally mutual," the source noted. "They will still talk and see each other."
Lambert, 26, officially came out in June in a cover story for Rolling Stone.
"I don't think it should be a surprise for anyone to hear that I'm gay," he said at the time.
As previously reported on AccessHollywood.com, the "Idol" runner-up will release his first official post-"Idol" album – "For Your Entertainment" – on November 23.
"I'm so excited," Adam told Access Hollywood's Tony Potts at the Hollywood premiere of Michael Jackson's "This Is It" on October 27. "We just came up with the final track listing [on Monday] — made our final selection on songs. It's all happening… I can't believe it. I'm so lucky."
His date for the big red carpet event that night? Fellow singer-songwriter Katy Perry.
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