The Jason Derulo, Jordin Sparks split seemed friendly enough at first, but now a model named Carmen Ortega is claiming to be the real reason.

Ortega claims that she slept with Derulo many times while he was engaged to Sparks, but broke it off when she found out he was engaged.

Ortega is either not very smart, or just looking for attention because most NFL middle linebackers would steer clear of confrontation with Jordin Sparks. Who knows though, this is the girl that also claimed to be the reason that Reggie Bush and Kim Kardashian broke up.

So is Ortega telling the truth? You could actually have the chance ask him yourself! 

We are giving you the chance to be on Jason Derulo's VIP guest list for his show at the Royal Oak Music Theater.  Just click the picture below to get signed up!