Jordin Sparks and Jason Derulo's breakup drama is getting nasty.

Sparks recently told Power 105.1 FM's "The Breakfast Club" that after breaking up with the 25-year-old "Talk Dirty" singer, she returned the BMW that he gifted her for Christmas in 2013.

The "Left Behind" actress also added that she was surprised to learn that the BMW was not purchased, but instead leased. Sparks told the "Breakfast Club" that keeping the car "would be like dirty money."

After being slammed on the radio, Derulo took to Instagram to fire back against Sparks' allegations, posting a grainy photo of a "Vehicle Bill of Sale" document showing that he purchased a four-door car for $74,431.22, along with the Dealer Administrative Fee of $599 on Dec. 24.

"Women Lie, Men Lie, Numbers Don't Lie! #WhyLease#BreakfastClub," he captioned the photo and even tagged his former girlfriend's Instagram handle in a tweet. Some of Derulo's fans have suggested that the bill was for a different vehicle.

During the interview, Sparks called Derulo "a great guy," adding, "I don't wish him any harm. He did some stupid shit, but I can't hold that against him. [Our] relationship did teach me what I like and what I'm willing to do and what I'm not willing to do."

The couple split in last September after dating for three years. Following their separation, Derulo was surrounded by infidelity rumors, which he quickly dismissed.