An audience clip shows comedian Kevin Hart rushed the stage at the last of Usher's four sold out nights at Los Angeles venue the Intuit Dome, much to the delight of fans

In this old clip, Diddy inadvertently revealed he’s been sharing more than a stage with Usher, and Kevin Hart jumped in to roast him mercilessly.

Kevin Hart made a surprise appearance at Usher's concert during his 'Past Present Future' tour, attempting to perform 'Nice & Slow.'

A shirtless Kevin Hart attempted to steal the stage from Usher . On Thursday evening, during the singer’s last show of his sold-out four-night stint in Los Angeles, Hart appeared on the stage to give his best Usher impression.