You might want to call Jennifer Lopez, Jenny from the Eastern Block, because she's reportedly resorted to spy tactics to keep an eye on boyfriend, Alex Rodriguez.

According to Us Magazine, J.Lo reportedly hired a private investigator to tail A-Rod to make sure he wasn't up to anything shady after the singer worried their relationship was "too good to be true."

As you may suspect, this didn't go over great. Us Magazine reports, "He found out and they had a huge fight... but they're working through it."

Perhaps A-Rod should take the intrusive maneuver as a compliment though, because according to Us "She's really into Alex and wants it to work... So she's trying to control as much as she can."

We're not sure a PI is the best way to increase their trust levels, but since he's no longer sliding all over a baseball diamond, A-Rod doesn't have any dirt on him.