Usher took to the live stage at former president Bill Clinton's Decade of Difference concert at the Hollywood Bowl on Saturday (Oct.15) and while he wowed the crowd with his impressive vocals and athletic dance moves, the most memorable part of the performance was when Usher suffered a wardrobe malfunction, splitting his pants in front of the entire audience.

Usher joined an impressive lineup, including a Marylin Monroe-channeling Lady Gaga, Bono, Kenny Chesney and the Edge, to celebrate Clinton's belated 65th birthday and the 10th anniversary of his Clinton Foundation. But the 'Without You' singer was left red in the face at the gala when his pants split, midway through his energetic performance of his hit 'OMG.'

When he realized that there was an enormous tear in the thigh of his pants, the showbiz pro simply looked up and told the crowd "I work hard!" before continuing the performance as planned.

Talk show host-comedienne Ellen DeGeneres poked fun at Usher's wardrobe malfunction in front of the star-studded crowd later in the evening, joking, "Sorry I'm late, I had a rip in my pants and I had to fix it."

Watch Usher's Wardrobe Malfunction

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