Tyrese Gibson Sings about 'Change' in the Oscar World

1/15/2016 6:40 AM PST BY TMZ STAFF

Tyrese expressed his Oscar disappointment in song ... and the scene could have been ripped from a history book describing the civil rights struggle in the '60s. 

Tyrese was leaving Katsuya in Hollywood Thursday when our photog asked about the "Straight Outta Compton" snub ... and he waxed poetic.