The rapper and Toronto Raptors fan has taken aim at one of his team's former All-Stars. But why?

Kendrick Lamar and Drake have been exchanging diss tracks since October last year.

The previously unseen content includes three new songs and behind the scenes footage of previous songs.

The Canadian rapper joked on Instagram that the rushing floodwaters "better be espresso martini".

Lamar brought out a host of LA rap stars to join him on five consecutive renditions of Not Like Us.

Fans have been captivated by a mind-boggling, escalating song-based conflict between two modern rap titans.

Rapid-fire releases and fast pace of modern life elevate diss war to levels unparalleled in hip-hop history.

The war of words between the rappers include serious allegations - here's what you need to know.