Linda Perry (born April 15, 1965) is an American singer, songwriter, musician, and record producer. She was the lead singer and primary songwriter and guitarist of 4 Non Blondes, including their 1993 hit "What's Up?". She has since founded two record labels and composed and produced songs for other artists, which include: "Beautiful" by Christina Aguilera; "What You Waiting For?" by Gwen Stefani; and "Get the Party Started" by Pink. Perry also contributed to albums by Adele, Alicia Keys, and... [more on Wikipedia]