"It's awful! And I would tell him that. What are you doing?," Lopez exclaimed during the late-night show's "Plead the Fifth" segment. "It has too many colors! His tattoos always have too many colors. They shouldn't be so colorful, you know what I mean? They should be cooler."
Tell us how you really feel, J.Lo!
In December, Affleck was spotted showing off the massive tat
while on the set of his movie, Live by Night
, which he had done following his split from estranged wife Jennifer Garner
The American Idol judge cleared the air on rumors that the two were butting heads after she failed to make it to one of Carey's Vegas shows and was caught looking at her phone during her Billboard Music Awards performance in 2015.
As for why she skipped Carey's Vegas residency, Lopez had a reasonable answer.
"I think last year when it started, I was already here in New York doing Shades of Blue and doing [American] Idol on the weekends. Didn't have a lot of free time. And then started preparing my own," she explained. "I don't think there was a time where I could have seen it."