The 57-year-old singer put any rumors to rest during her guest appearance on Wednesday's episode of Watch What Happens Live With Andy Cohen.
The topic came up after a caller asked the Grammy winner if the former judges ever became romantically involved. However, Abdul was quick to shut down any speculation.
"Oh no! No! Ew, no!" she said.
This wasn't the first time fans had suggested there was "tension" between the two celebrities. In fact, Cowell claimed there was "sexual tension on her part" during a 2011 interview with Barbara Walters. However, it looks like Abdul is clearing things up once and for all.
It's been about a decade since both Abdul and Cowell served as judges on the singing competition series. So, what does she think of the reboot and the next generation of judges? Abdul weighed in on this, too.