Rihanna has suddenly released a new song featuring Paul McCartney and Kanye West. The 'Diamonds' singer released her new track, entitled 'FourFiveSeconds' on Saturday (24th January). West appeared at the iHeartRadio Summit on Wednesday (21st January) and used the opportunity to debut the new track. West performs vocals with Rihanna and McCartney provides acoustics for 'FourFiveSeconds'. The event was primarily for those working within radio but the trio's song is now available online.

Rihanna
Rihanna has teamed up with West and McCartney for 'FourFiveSeconds'.

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Although West has a pre-existing relationship with McCartney, as the two have previously worked together on 'Only One', it is uncertain if 'FourFiveSeconds' belongs to West or Rihanna. As Time reports, West made the announcement and producer Ty Dolla $ign claims 'FourFiveSeconds' is intended for West's next album. However, Rihanna used Twitter to announce the new track which primarily features her vocals. 

'FourFiveSeconds' is certainly different to anything West has done before and McCartney's influence is evident with both West and Rihanna sounding low-key and, whilst more raw, still displaying the range of their musical talents.

'FourFiveSeconds' has certainly got Rihanna's fans excited about the prospect of a new album. 26-year-old Rihanna's last album, Unapologetic, was released in 2012 and she hasn't released anything new since. However, in November, Rihanna told E! she was working on new material and was enjoying being back in the studio. "I'm in the studio right now with a killer team and I'm excited about what we're doing," Rihanna told a reporter from E!. 

Listen to 'FourFiveSeconds' Featuring Rihanna, Kanye West and Paul McCartney: