Its that one song that I just cant remember the title

It was a rihannas song. yeah, all the hu-has about work..
got me thinking..was it  whats my name?
or, only girl (in the world)
definitely not russian roulette, ir unfaithful...or
and I ended up listening to everything!

Its rehab ft. justin timberlake, remember this song still, from way bavk in 2008, I think..click it ♥

https://www.youtube.com/watch?v=rJYcmq__nDM&feature=youtube_gdata_player