Mr. Belding

Exposes Himself

6/9/2009 3:00 PM PDT BY TMZ STAFF
Seeing Zack Morris break out "Friends Forever" last night was beyond awesome. Watching Mr. Belding, a.k.a. Dennis Haskins, play peek-a-moob while trying to sing "Don't Stop Believin'" with an '80s cover band ... not so much.

0609_belding_tmz_video-1

Making matters worse: Steel Panther repeatedly called him "Mr. Belvedere."