While her husband Swizz Beatz has previously denied rumors that Alicia Keys came between him and singer Mashonda, the singer is speaking up, contradicting the producer's claims.

Last September, Swizzy told US Magazine that the rumors were "harmful" and that he was "disappointed" in all the gossip.

"I am disappointed that some have chosen to try and tarnish Alicia's reputation by irresponsibly implicating her in a situation that she has absolutely nothing to do with," he said.

However, in a brand new interview on Sirius' Shade 45 show, Lip Service, Mashonda addressed the alleged adultery committed by her hubby Swizz Beatz, confirming previous rumors that superstar Alicia Keys caused a rift in their relationship.

There were rumors that Mashonda had found credit card statements that matched dates and cities on an Alicia Keys' tour, and it seems to be true.

"That's a true statement, but that wasn't the first," Mashonda said with a laugh, when asked if the credit card findings were the first indication that something was wrong.

According to the singer, she had sensed there was a problem in her relationship with Swizzy before. And, this is why she searched for an answer.

"It's not like I wake up, and I have to snoop," she said. "It's if you recognize -- and this is for anybody, a man, woman, whatever -- if you recognize a dramatic change, and you're asking 'What's the problem?' and you're not getting an answer, you're just gonna have to [find out for yourself]."

So why did their long relationship come to an end? Mashonda admitted that the producer is a man who acts on impulse, acting on things in the moment.

"I guess people go through their things, and they feel like they gotta make their moves. Whatever makes them happy at the moment is what they go by," she explained.

Despite separating in early 2008, the singer said she has no hard feelings toward her husband, saying he's been "forgiven."