Kid Rock -- Crushes AC/DC Classic at Karaoke Bar

Kid Rock might be the greatest rock 'n roll karaoke singer of all time ... 'cause dude went to a joint in Malibu this week and pulled off AC/DC's "Back In Black" ... and TMZ caught the whole thing on tape.

It all went down at Cafe Habana's Caliche Rum Weekly Karaoke Session on Wednesday -- when Rock took the mic and cranked out TWO songs -- including the Dobie Gray classic, "Drift Away."

Dude's got pipes -- check out the videos.