Justin Bieber “Weirded Out” by Mom Playboy Rumors

 Mike Coppola/Getty Images

Justin Bieber is reeling from Web reports that his mom was offered $50,000 to pose topless in Playboy.

"My mom is a moral woman…let's just leave that one for what it is…because that rumor just grossed and wierded me out…" the 16-year-old "Baby" singer wrote on Twitter Tuesday.

PHOTOS: Justin kisses a whale

Bieber also set the record straight on a few other tales about himself floating around the Internet.

"I'm not dead. I had to check this one… but it turns out I'm alive," he quipped. (He was rumored to meet his demise in January, which he jokingly shot down on Twitter then.)

Another far-fetched falsehood about the teen: that he's a member of a shadowy secret society.

PHOTOS: Justin meets Kim Kardashian!

"I have not joined the Illuminati or any other cult," said Bieber. "I'm a Christian and I pray before every show and am thankful for every blessing."

VIDEO: Justin walks into a revolving door

Bieber also addressed his changing voice ("I'm not Peter Pan…I'm growing up and my voice will change but no worries Jan Smith is the greatest vocal coach ever…stronger than ever!") and his height (I am not 10 feet tall and I don't shoot fire balls from my arse….that was BraveHeart.)

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