Now this is some real shady news. Apparently, while Mariah Carey was belting out high notes during her performance at the 2015 Billboard Music Awards, Jennifer Lopez had no interest in what she was doing onstage because she appeared to be on Instagram.

TMZ posted a video of at J.Lo scrolling through her smartphone, swiping through images on the screen. While Mimi was singing “Infinity,” Lopez barely even looked up from her phone and didn't appear to at least groove to the beat.

Not to play devil’s advocate, but it definitely looks like the “Booty” singer was surveying photos on Instagram. Was she checking out who was the best dressed at the BBMAs?

She eventually looked over at her date Casper Smart and nodded her head while Carey was performing. When the audience burst into applause at the end of her set, Lopez did clap for her.

The video above certainly has the gossip-hungry eager to say that J.Lo was dissing Mimi.

Now there have been reports in the past of an ongoing feud between Carey and Lopez. However, the On the 6 creator has always denies any ill feeling toward her.

“I don’t have a feud against her at all,” Lopez told Andy Cohen on Watch What Happens Live last June. “I know from back in the day, I’ve read things that she’s said about me that were not the greatest, but we have never met. Like, we don’t know each other. I think it’s kind of from word of mouth of things that have happened in the past that I’m not really aware of. But I don’t know.”

What do you think? Was J.Lo throwing shade at Mimi at the BBMAs? Tell us in the comments below.

You can watch the full video at TMZ.

See 2015 Billboard Music Awards Red Carpet Photos