Jennifer Lopez shared a behind-the-scenes clip on Sunday of herself instructing Shakira on proper booty-shaking during their first rehearsal for the Pepsi Super Bowl LIV Halftime Show back in January.It's hard to believe the 50-year-old Grammy nominee would have any expertise on the subject over the 43-year-old Grammy winner, whose most famous song was her 2006 hit, Hips Don't Lie.The Puerto Rican pop diva could be heard teaching the Colombian crooner: 'I do it with my knees.
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