Rihanna gave Twitter a nice surprise Saturday night and debuted "Four Five Seconds" on her website. It's a pretty bare-bones track, with McCartney on guitar and Rihanna and Kanye trading vocals.
It's not clear if this is the song Ty Dolla $ign hinted at in his recent Billboard interview, or if there will be another collaboration coming out. A new Rihanna album is due this year.
Photo via rihannanow.com