Watch: Kanye West pumps up Bulls crowd before Game 4

Rapper Kanye West took the mic at the United Center before Sunday's Game 4 the Eastern Conference semifinals between the Chicago Bulls and Cleveland Cavaliers.

With the Chicago Bulls riding high after Derrick Rose's buzzer beater in Game 3, they found a way to keep the momentum rolling into Sunday's Game 4: bringing out Kanye West to pump up the United Center crowd before player introductions.

West, who grew up in Chicago, came out before tip-off with the Bulls leading the series 2-1. Rose's game-winning three on Friday was one of the biggest Chicago sports moments in some time, and the chance to finally unseat LeBron James in the playoffs has the city amped for the remainder of the series.

Forward Pau Gasol was ruled out for Game 4 earlier Sunday with a hamstring strain. West's appearance wasn't enough for the Bulls on Sunday. LeBron James hit a buzzer-beating jumper to even the series between the Cavaliers and Bulls.

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During a commercial in the first quarter, West came out to perform "All Day." Maybe there's a "Hey Mama" halftime show coming for Mother's Day, too.

When @kanyewest does an impromptu performance at the #Bulls game.. pic.twitter.com/t0FBB2KSse

— Chicago Bulls (@chicagobulls) May 10, 2015

Kanye West pumps up the crowd before Game 4. I'ma let you finish but that was pretty cool. pic.twitter.com/C9gzi3qeMu

— Dave McMenamin (@mcten) May 10, 2015

- Mike Fiammetta