Barret Powell (aka Louisville Sluggah) (born November 30, 1976) is an American rapper, famed as a member of the Boot Camp Clik, Fab 5 and the group O.G.C.. He is also known for his effortless flow which sometimes contains internal rhyme schemes.

He debuted in 1995 on Smif-N-Wessun's Dah Shinin', on the posse-cut "Cession at Da Doghillee". Louieville and O.G.C. teamed up with Heltah Skeltah to form The Fab 5, and released the hit single "Leflaur Leflah Eshkoshka". O.G.C. dropped their debut album in 1996, Da Storm, which sold over 200,000 copies in the US. Louieville and the Boot Camp Clik dropped their first group album, For the People, in 1997, featuring the first Louieville Sluggah solo track, "The Dugout". O.G.C. released their second album in 1999, The M-Pire Shrikez Back, led by the single "Bounce to the Ounce". Louie was missing from the Hip Hop scene until 2002, when he and the Boot Camp released their second album The Chosen Few. Their third group album, The Last Stand, was released July 18, 2006 on Duck Down Records. Louie currently owns his own label "Out Of The Park Entertainment".