Jennifer Lopez shows us how it's done! She's 45 years old, super beautiful, fit and fine! How many 20 year olds look THIS good?!

The American Idol judge headed to lunch in a devastatingly sexy outfit -- a matching black crop top and bagging silk jogging pants with camel-and-black, lace-up heels and a fringe shoulder bag. Hair, perfection; car, gorgeous; makeup, glam. Love, love love!

The triple threat will star in a new NBC crime drama, Shades of Blue, to be directed by Oscar-winner Barry Levinson in a show executive-produced by Ryan Seacrest through J Lo's Nuyorican Productions. The show centers on Harlee McCord (Lopez, a single mother and detective who is recruited to work undercover for the FBI's anti-corruption task force, according to Deadline.