"Am I really?" the raven-haired singer asked Access Hollywood's Nancy O'Dell, who revealed the news. "I'm not hot!"
"How great is that though – to show how far you have come? Because that means you're a bachelor – straight, gay – it's just that you're a good looking man," Nancy noted. "You're attractive to many people."
"That's pretty cool. That's really cool," Adam said once the news set in. "I think that attractiveness is a universal thing. It shouldn't matter who your preference is. I mean, it's like, [if] you think something is good-looking, you think it's good-looking. What's the difference?"
When asked if he thought being open with his sexuality is changing people's minds, Adam said for him, it's just a bonus as he is focused on being an entertainer above all.
"I mean my goal is to just sing," he laughed "I'm just putting on a show, you know, and if that's how people feel about it then that's really cool."
Since the finale of "American Idol" last month, where Adam finished as the runner-up to Kris Allen, a host of rumors have come about the San Diego 27-year-old. In addition to confirming questions about his sexual orientation, beginning in Rolling Stone magazine, Adam has also gone on record about the gossip that he's set to front British rock superstar act Queen.
"[Brian May] expressed interest in possible collaborations in the future. We got along great. Roger Taylor and Brian May were class acts — gentlemen, really positive, inspirational, kind of forces on stage with Kris and I," Adam explained of the "Idol" season finale collaboration. "I think he expressed interest in maybe working on something in the future but it was never said, 'Oh you're going to be the new lead singer.'"
While Adam has plenty to keep him busy – including his upcoming album, set for release this fall on RCA Records – he told Nancy he may branch out in other ways eventually.
When Nancy asked if he ever thought about doing a clothing line, Adam revealed there is actually a cosmetic product he may have an interest in.
"Maybe [an] eyeliner, nail polish combo line," Adam said. "It will be very livable. You can put it on and it will stay for the whole week."
Related Content from AccessHollywood.com:
PLAY IT NOW: Behind The Scenes: Adam Lambert's Rolling Stone Cover Shoot (June 2009)
PLAY IT NOW: Kris Allen & Adam Lambert's 'Idol' All-Nighter