Kanye West has dropped a bombshell and unveiled a brand new song out the blue.

Dedicated to Kanye’s daughter North West, Only One, a surprise duet with Sir Paul McCartney, is widely expected to be the lead single from the rappers upcoming sixth studio album, following on from 2013’s Yeezus.

Only One is out now – hit the iTunes link below to download, and stream the track in full after the jump: