Zac Hanson -- MAN SPITS IN DRUMMER'S FACE ... Caught On Video

Zac Hanson -- MAN SPITS IN DRUMMER'S FACE ... Caught On Video

Zac Hanson -- the drummer from Hanson -- was the victim in a disgusting spit attack on his tour bus in Seattle last night ... and the gross moment was all caught on video. Here's what we know -- the spitter somehow got onto Hanson's tour bus ... and…

TMZ.com