Lionel Richie -- New Michael Jackson Molestation Claims Are 'Bogus'

Michael Jackson's longtime friend Lionel Richie is scoffing at the new molestation claim against the King of Pop ... telling TMZ, Wade Robson's abuse allegations are "bogus."

As we first reported, Robson -- a famous choreographer -- filed a creditor's claim against Michael's estate this week claiming the singer sexually abused him as a child.

Wade's lawyer told TMZ ... as far as he's concerned MJ was a "monster" who sexually abused Wade for seven years ... and then threatened Wade if he ever went public.

Sources close to Wade told us, 30-year-old Wade's repressed memories came flooding back following a nervous breakdown last year.