"Why You Treat Me So Bad" is a song by Jamaican-American musician Shaggy. Released in 1995 as the second single from his third studio album, Boombastic (1995), it features American rapper and emcee Grand Puba and contains elements from "Mr. Brown" by Bob Marley.[1] The song was a notable hit in several countries, including Ireland, Italy, the Netherlands, New Zealand, and the UK, where it peaked at number 11.