Jennifer Lopez: Sexy Lady in Red on ‘American Idol’ (PHOTOS)

Seriously, how does she do it?

The 42-year-old bombshell that is Jennifer Lopez once again hit it out of the park last night on American Idol, where she wowed in a gorgeous form-fitting red dress that showed off her curves (natch).

Get more details on her look …

The singer-actress and girlfriend of 24-year-old dancer Casper Smart paired the v-shaped dress with cream heels and oversized gold hoop earrings, for one of her best American Idol looks to date this season!

Inside the show, J-Lo — who recently confirmed her summer tour with Enrique Iglesias, as reported first by Celebuzz — gave yet another standing ovation to 20-year-old contestant Joshua Ledet, who impressed the judges with his slowed-down take on the Bee Gees classic “To Love Somebody.”

“I think you’re one of the best singers I’ve seen in 50 years!” she said, of Joshua’s performance. Not bad! (Watch Joshua’s performance below!)

What did you think of J-Lo’s red dress? Is it a keeper? Check it out in our gallery — which features all of J-Lo’s looks from season 11 — then voice your opinions in the comments!