"SOS" is a song by Barbadian singer Rihanna. It is a dance-pop and R&B song that samples the 1981 song "Tainted Love" by Soft Cell. It was released on February 14, 2006 off of the album "A Girl like Me" and went to number one on the "Billboard" Hot 100, her first song to do so. The song was originally written for Christina Milian.