O.B. Buchana is an American southern soul and blues singer known for his versatile vocal range and charismatic stage presence. Buchana's style is heavily influenced by the classic R&B sounds of the 1970s, blending them with modern soul and funk elements. He gained prominence in the early 2000s with hits like "Let's Get Drunk" and "Back Up Lover", and is considered a significant figure in the Southern soul blues scene. His music often features a distinctive mix of soulful melodies, funky rhythms, and expressive lyrics.