A version of Kanye West's hit song "All Day" with a verse from Kendrick Lamar has hit the internet, but is it the official remix? Nobody knows yet, but it's definitely intriguing; Lamar has a writing credit on the original version of "All Day" for reasons that will quickly become clear once you give this cut a listen. While Lamar's version was likely recorded long before the current hit single was released, it doesn't make this any less great. Having two of the best rappers around on the same track is always a treat, and this version of "All Day" is no different.