Jennifer Lopez has been tapping back into her "Jenny From The Block" image lately and fans got a look when she accidentally dropped the "F" bomb on American Idol live Wednesday.

Harry Connick, Jr. Has Crush on J. Lo?

The incident started when Lopez was critiquing contestant Jena Irene's performance of Evanescence's Bring Me To Life. 

American Idol Top 9 Results

She told the hopeful contestant, "Jena, you sound phenomenal. [Harry Connick, Jr.] is right. The minute we hear your voice it's soothing...The only thing I would say is I wanted you to be more messy. Do you know what I mean?"

The Waiting For Tonight singer then showed her what she meant and flipped her hair.

"You were kind of fixing your hair, and right at the beginning you kind of just threw yourself into the crowd and your hair went crazy. I wish it would have been more messy."

Judge Keith Urban was totally distracted form Lopez's point and just wanted to see the hair flip again.

Connick chimed in and chanted, "Hair flip! Hair flip!"

Right at the :30 second mark, Lopez dropped the "F" bomb. She quickly caught herself and covered her mouth while Connick teased, "It's Jenny From the Block!"

Lopez tried to recover and continued giving Jena advice.

"We were so with you and we needed you to take us even further. Great job, though! Amazing job!"

As soon as she was finished, she whispered to Connick and started laughing.

Check out the video here and see Jena's performance below.