Rihanna - "SOS," "Unfaithful," #1 in US in 2006

Rihanna with the lead single, "SOS," peaked at #1 on the Billboard Hot 100.

"SOS," becoming Rihanna 's 1st #1 in the U.S..

Rihanna's 2nd single, "Unfaithful," was a worldwide hit.

In 2006, before the release, Rihanna served as an opening act for Gwen Stefani to promote the album.