Jack Black just dropped more than $10,000 so a group of music students could travel to Disneyland to perform in a parade tomorrow ... TMZ has learned.
The whole thing came to fruition thanks to Jack's mom -- who lives in Tonasket, Washington and is a HUGE supporter of the local music programs.
We're told the band -- made up of local high school and middle school students -- entered a Disneyland contest and were selected to perform at the Magic Kingdom ... but there was a catch -- they had to pay for their own travel expenses.
We're told the community was rallying to raise the cash -- when Jack caught wind and came through with a MONSTER donation.
The band arrived in L.A. yesterday after a two-day bus trip and will perform in the Town Square parade this afternoon. After that, we're told the kids will all have dinner with their famous benefactor.