Kanye West appears on a reworked version of Rihanna's 'Diamonds'.
The song, which has hit No1 in the UK and is currently atop the US iTunes chart, is the lead track from her new album Unapologetic, released on Monday (November 19).
It's not the first time they've worked together - Rihanna appeared on Kanye's 'All The Lights', which won 'Best Rap Song' and 'Best Rap/Sung Collaboration' at the Grammy Awards.
Unapologetic has received mixed reviews from critics, with many unable to detach the record from the star's high-profile personal life.
Her duet with Chris Brown, 'Nobody's Business', has been a particularly strong talking point.
RiRi is currently touring the world as part of a 777 promotional tour - seeing her fly to seven different cities around the world, performing 7 shows in 7 days.
Listen to the 'Diamonds Remix' featuring Kanye West below.
What do you think of it?
PHOTOS: Rihanna's plane party as she travels the worldOne Direction's Niall Horan 'Won't Spend Time With Selena Gomez Alone' Despite Romance Rumours
X Factor '12: Tulisa Fights Back As Louis Calls Her A WAG
X Factor's Jahmene Douglas: 'My Abusive Father Deserves A Chance To Change'