Judge did not appear to be singing, but she was definitely dancing to her new single.By Gil Kaufman Paula Abdul performs on "American Idol" on Wednesday Photo: Mickshaw/ Getty Images For someone whose present career is based on critiquing live singing performances, it's ironic that when judge Paula Abdul took the stage on "American Idol" Wednesday night May 6 to debut her new single, "I'm Just Here for the Music," the 46-year-old former pop star did not look like she was actually singing. Abdul, who recently helped choreograph a disco number for the show's finalists, definitely showed off her still very nimble footwork during the performance of the up-tempo, Britney-like dance pop tune.