Many people think Umbrella was when it all started but those in the know know that SOS is what really truly started Rihanna’s career. The success of this song is what actually led to Christina Milan being dropped from her label mid way thru promo of her album. This song was suppose to be Christina Milan’s first single but she hated it. Instead she opt for her boyfriends produced Say I (which I loved by the way). The label was furious when SOS went number #1 and Say I tanked.

P.S if it wasn’t for SOS, Rihanna would have never been given Umbrella...as that song was meant for Mary or Britney.