Mm… Whatcha Say? Jason Derulo called out ex girlfriend Jordin Sparks on Instagram for allegedly lying in an angry interview on Thursday, Jan. 15.

Sparks, 25, apparently offended Derulo in her interview with Power 105.1's The Breakfast Club, when she claimed that the BMW he had gifted her wasn’t even purchased. (After their fall 2014 split, Sparks got rid of the luxury vehicle at the dealership. It was there that she supposedly discovered it was leased.)

Derulo, peeved by his ex-girlfriend's latest comments, took to his Instagram hours later to defend himself. "Women Lie, Men Lie, Numbers Don't Lie!" the "How Bout Now" singer, 25, wrote, alongside a photo of a "Vehicle Bill of Sale."

The snap included bold red circles around the most relevant information, including the name of the car buyer: "Jason J Desrouleaux," which is Derulo's full name. He also circled "4 Door Sedan" next to car type, and highlighted the selling price of $74,431.22, as well as the Dealer Administrative Fee of $599.00.

"#WhyLease," Derulo concluded in the photo, alongside the hashtags and handles of all offending parties involved: "#BreakfastClub @cthagod @djenvy @angelayee @jordinsparks."

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Their social media squabble is the latest fallout from the exes after Us Weekly confirmed last September that the two were done. Derulo told Us at the time that he and Sparks "decided to amicably part" and that "infidelity, cheating or deceit played no part in our relationship or our breakup.” He revealed to Ryan Seacrest several days after their split that they weren't exactly on good terms.

Sparks confirmed this fact in an interview with Kathie Lee and Hoda Kotb, dishing details on how Derulo broke up with her over the phone. Despite the messy split, Sparks reaffirmed on Thursday that she had no ill will towards her ex-boyfriend.

“He's a great guy," she said of Derulo. "Like, I don't wish him any harm. He did some stupid s—, but I can't hold that against him."

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