Kelly Brianne Clarkson is an American singer, songwriter and children's book author. Clarkson made her debut under RCA Records after she won the highly publicized first season of the television series American Idol in 2002. She was originally marketed as a pop musician with her debut album Thankful (2003). With the release of her multi-platinum second album Breakaway (2004), Clarkson moved to a more pop rock-oriented style of music.