Jack Black surprises cast of Broadway's 'School of Rock

NEW YORK: The cast of Broadway’s new musical “School of Rock” got the endorsement Sunday of someone they’ve desperately wanted to impress for months — Jack Black.

Stevie Nicks Shocks 'School of Rock' Audience With Surprise Performance - ABC News

Jack Black surprises cast of Broadway's 'School of Rock

Jack Black surprises cast of Broadway's 'School of Rock

Jack Black surprises cast of Broadway's 'School of Rock

Jack Black confirms School of Rock cast will reunite to celebrate 20 year anniversary

Surprise! The kids are the best thing in 'School of Rock

The 'School of Rock' Star WhoJust Died in a Tragic Accident

When does The Phantom of the Opera close on Broadway?

Andrew Lloyd Webber Makes Surprise Appearance at 'School of Rock' Musical - Reel Life With Jane

See Jack Black meet the incredible cast of Broadway's School of Rock

Surprise! The kids are the best thing in 'School of Rock

Lessons Learned from School of Rock

Jack Black surprises cast of Broadway's 'School of Rock

Stevie Nicks Shocks 'School of Rock' Audience With Surprise Performance - ABC News

Slash Surprises 'School Of Rock' Cast