Jennifer Lopez: Ab-tastic on 'American Idol'!

Jennifer Lopez shows off her amazingly toned six-pack abs as she arrives at the taping for American Idol in a Hervé Léger by Max Azria dress on Wednesday (April 18) in Los Angeles.

The 42-year-old entertainer taped the live show looking gorgeous as ever alongside her fellow judges Randy Jackson and Steven Tyler.

PHOTOS: Check out the latest pics of Jennifer Lopez

Jennifer may be going on tour this summer and bringing a very special guest: Enrique Iglesias, Billboard reports! Although nothing is confirmed, the mag revealed the two “are in discussions.”

FYI: Jennifer is wearing Guiseppe Zanotti heels and Pomellato, H Stern and Renee Sheppard jewels.