Shaq Bon Jovi -- Frontman In Rock Band ... At LSU College Bar (Video)

Call him the Black Bon Jovi ... because Shaquille O'Neal got on stage at a college bar at LSU this week and belted out "YOU GIVE LOVE A BAD NAME" ... and TMZ Sports has the footage.

The Diesel hit up Fred's In Tigerland near the LSU campus Thursday night -- his old stomping ground -- when he decided he wanted to jump on stage with a local band and jam out to a rock song.

We're told ... Shaq told the band to "follow my lead" ... and then busted out some Jovi.

As you can see in the clip, the crowd went NUTS ... and Shaq jumped around on stage like a maniac while screaming the lyrics at the top of his lungs.

The best part -- we're told Shaq was dead sober for the whole thing ... not one drop of alcohol.

But we all know Shaq's comfortable when it comes to performing on stage ... right Kobe?