I liked The Specials' "A Message To You,Rudy" when it came out, and it was a pretty big hit. It was a refreshing sound, amidst all the crap of the day.
It's worth mentioning that the original version of the song was released in 1967, as written and performed by Jamaican artist Dandy Livingstone (original title - "Rudy, A Message To You") :
https://www.youtube.com/watch?v=7BwNgQ51hSIOn a side note, Joe Strummer & The Mescaleros used to play it live. You gotta love this drunken version of the song :
https://www.youtube.com/watch?v=KMpyPvfQTUk