RiRi joins forces with Kanye West, McCartney for new acoustic ballad 'Four Five Seconds'

Rihanna has recently teamed up with Kanye West and Paul McCartney for new acoustic ballad called 'Four Five Seconds.'

The track would be the first new song in two years for the 26-year-old singer, in which West has provided his vocals and Sir Paul would be the man behind the guitar, the Mirror reported.

In the track, the 'Diamonds' singer goes back to basics and performs a stripped back vocal which shows off her unique sound without the help of electronic voice effects and up-tempo dance beats which she has used in the past.

Alongside the single, promo pictures have also been released of the three singers wearing matching denim, while Rihanna shows off bare shoulder.