Carole King Klein (born Carol Joan Klein; February 9, 1942) is an American singer, songwriter, and musician who has been active since 1958, initially as one of the staff songwriters at 1650 Broadway and later as a solo artist. Regarded as one of the most significant and influential musicians of all time, King is the most successful female songwriter of the latter half of the 20th century in the US, having written or co-written 118 pop hits on the Billboard Hot 100.