Jennifer Lopez slips on stage

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LONDON - American actress-singer Jennifer Lopez is nursing a bruise on her back after slipping on stage during her performance at the American Music Awards.

After strutting on the stage, converted into a boxing ring, in a robe and gloves to sing Louboutins from her new album, Lopez gyrated with male dancers Sunday. But it all went wrong for the star after she climbed onto a human pyramid of half-naked performers and jumped down, slipping backwards onto her backside, reported contactmusic.com.

Lopez swiftly leaped to her feet and carried on with her performance.