[Video] Usher Brings Out Trey Songz At The United Center

This past Monday night, Usher stopped in Chi City with his UR Experience tour at the United Center and during his set, he was full of surprises. After opening for Usher earlier in the evening, August Alsina returned to the stage along with Trey Songz to perform the remix of "I Luv This Shit." Usher also brought out Rico Love to perform his single "They Don't Know." Watch it all after the jump.

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