The corpse of Britney Spears' relationship with Jason Trawick is hardly cold -- they called off their engagement in January -- and the pop diva has already stepped out with a new man.

Who is he? We have no idea.

One thing is for sure -- to borrow and edit a phrase from 'Scream & Shout,' her new smash single with, when Brit steps out with a man, all eyes are on her. That's because she's Britney b----.

Brit stepped out and had dinner with a gentleman wearing a baseball cap, jeans, sneakers and a Rolling Stones 'Tongue' logo t-shirt. She wore jeans, brown booties, a white top and a blazer, with her hair in a messy blonde bun atop her head. She looked 'date night cute.' Judging from their attire, it was casual and the grub sesh took place on Valentine's Day.

TMZ tried to find out who this dude is, but the singer's reps are keeping that information classified for some reason and aren't giving the media any sort of security clearance regarding his identity.

The photos popped up at the end of last week, but Brit's flacks are dodging calls and keep throwing shade. They won't reveal his identity, saying they are trying to find out who he is.

Perhaps that much is true. Brit doesn't need to have a press briefing with her PR team every time she grabs food or goes on a Starbucks run. However, her handlers could be trying to throw the press off the scent of a budding new relationship, since it's very soon after her split with Trawick.

Both of those scenarios are entirely possible. We just hope Brit is happy, since she was with Trawick for so long and seemed genuinely happy to be with him.

Watch the Britney Spears 'Scream & Shout' Remix Video