Kendrick Lamar "i" (live in Toronto)

Kendrick Lamar "i" (live in Toronto)
Kendrick Lamar popped up as a surprise guest at Prince's album release party earlier this week, and he pulled another surprise appearance in Toronto yesterday (October 2).

Taking the stage at the We Day celebration, Lamar delivered his new Isley Brothers-sampling single "i" live for the first time — to a crowd of screaming children at the Air Canada Centre.

It's all very motivational. Watch some crowd-shot footage of the performance in the player below.