TMZ Composite Rapper Shyne is jumping back into the music scene in a big way ... he's set to join a ton of artists at the BET Awards to honor one of the biggest names in the game. The Belizean rapper-turned-politician is gearing up to take the stage for Sunday night's ceremony ... in recognition of Diddy 's Lifetime Achievement Award. Shyne's going to be performing one of his classics from 2000, "Bad Boyz" ... the guy hasn't done the song live much -- once in a lifetime opportunity for fans to witness. Shyne's been getting into politics since laying down track after track in the industry ... he currently lives in Belize where he serves as Leader of the Opposition and the Ambassador of Music. He's also in Belize's House of Representatives. Gallery Launch Gallery Getty The night's going to be filled with huge performances like this one ... for Diddy alone, Shyne will be taking the stage with Mary J. Blige , Nas , Lil' Kim , Busta … [Read more...] about Shyne Set To Take The Stage At BET Awards, Honoring Diddy