Rihanna drops new single today! ‘Four Five Seconds’ is a guitar-led song, played by Paul McCartney (who would have thought!) and Kanye West accompanies her on this duet. It sounds like they all got in the studio, grabbed a guitar and started singing on the riff played (with Kanye of course having his auto-tune with him). Seems like RiRi is dropping her new album some time now and this is her ‘street’ track, to see how it goes, how people are gonna handle this different sound. For more info or if you wanna download the track go to http://www.rihannanow.com/.