Alicia Keys Performs 'Poetic Justice' In L.A. With Kendrick Lamar

During a Los Angeles tour stop on her Set the World on Fire trek, Alicia Keys surprised fans by bringing out Kendrick Lamar to perform his hit, "Poetic Justice."

The duet went down at the city's Staple Center, where Alicia began by singing the hook to the Janet Jackson-sampled track. Then, Lamar came out on stage-much to the surprise and excitement of the crowd:

"Kendrick, come on the stage with me!" said Keys before handing the mic to Lamar, who also performed "Swimming Pools (Drank)."

During the show, Alicia also debuted a video entitled "Illuminate Me" as part of her "Keep Moving Projects" with BlackBerry.

Keys was recently announced as the global Creative Director of that company. A role which sees her working closely with app developers, content creators, retailers, carriers and the entertainment community to help revive the BlackBerry brand.

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