4 Non Blondes were an early-1990s American alternative rock band. Lead vocalist Linda Perry has since released solo work and produced songs on hit albums by P!nk and Christina Aguilera. 4 Non Blondes consisted of bassist Christa Hillhouse, guitarist Roger Rocha , drummer Dawn Richardson and vocalist Linda Perry. 4 Non Blondes had a huge hit single in 1993 with "What's Up". A year later, DJ Miko remixed the track as a dance song, and it became a hit again, on radio and in clubs.

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