put her abs on display as she performed during the American Idol
season 11 grand finale show on Wednesday night (May 23).
Joined by Puerto Rican duo Wisin & Yandel
, the 42-year-old superstar had the crowd dancing in their seats as she performed her latest hit single Follow the Leader
She later slipped into a sparkly mini dress as she joined co-judges Randy Jackson
and Steven Tyler
as she crowned rocker Phillip Phillips