An unreleased Kendrick Lamar verse from Kanye West’s All Day has surfaced online.

The 30-second snippet has been widely rumoured, following Lamar’s co-production of the track; whether the full version is likely to receive an official release remains a mystery, though. 

In the meantime, stream Kendrick’s effort below – it hears further rationale as to why he’s deservedly leading the rap charge at the moment: