california. they specialize in pranks like talking through people. >> how's the piano lesson yesterday. >> yeah. he was a great piano teacher. >> reporter: they had just been shooting another prank when brian stumbled on clydesdales and commented on his beard. >> oh, that's a cool beard. and he was like, oh, yeah, check this out. and he did the mustache dance. >> can you do it a couple times? is that cool or -- >> smile's a good thing. >> reporter: with clydesdales's permission put his mustache dance on youtube. >> just flexing your -- >> actually, i don't have no teeth. >> okay. >> that's just my tongue. i play harmonica. >> reporter: online commenters suggested taking up a collection for clydesdales. maybe they could collect enough to get clydesdales some new teeth though that might mess up his movable mustache technique. in no time the fun broke the