"What's Up?" is a song by American rock group 4 Non Blondes from their 1992 debut album, Bigger, Better, Faster, More.
It was released as the album's second single in 1993.
The song was successful in the United States and in several European countries, peaking at number one in Austria, Belgium, Bulgaria, Germany, Ireland, the Netherlands, Norway, Poland, Sweden, and Switzerland.
The title does not appear in the song's lyrics.
The title was chosen to avoid confusion with Marvin Gaye's 1971 song "What's Going On".