Stevie Wonder and family leaving The Grove, Los Angeles, California - 02.01.09

The beloved singer/songwriter insists it isn't his lack of sight that makes him reluctant to compete on the hit U.S. show - but his weight.

He says, "Someone asked me the question, 'Can you dance?' and I said, 'You know, after having had seven children, I guess I can do something.'

"It's possible... My challenge is, first of all to lose a little stomach... and then once I feel that I look good enough, then I'll go on and win."

And Wonder is looking forward to having fun with the people who think a blind man won't be able to compete on the show.

He adds, "(They're like) 'He's tall, he's bow-legged, he's blind, he doesn't fall off the stage when he dances...'"

Source: WENN