The 40-year-old singer and actress blushed and held her head in her hands as a clip from 1990 was shown on George Lopez's Lopez Tonight Show.
Holding her head in her hands, and covering her face in embarrassment, she screamed: 'That was so mean'
'That's so hysterical. That's MC Hammer, he was not even known then.'
Jennifer was seen gyrating and dancing while dressed in a black cropped top, matching pants and dance tights.
She later explained: 'I was dancing in a dance school in Manhattan and they came for Yo! MTV Raps which was just starting out then.
'They came up and they were like, 'We need a few of your girl dancers for behind them when they are talking.'
'I was like, "Oh yeah, let me get up in there!"
George Lopez added: 'You know the best part? There is no music playing!'
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