We're going to go ahead and file this one under "Let's wait and see:" sources close to Wiz Khalifa and girlfriend Amber Rose (a.k.a. Kanye's ex) say that he's proposed and that the freshly-formed couple could tie the knot as soon as this summer.

"Wiz is going on tour for the next month," the source says. "But he told her when he gets back, he's going to marry her. And he was serious - he asked her to start making plans."

The "Black and Yellow" rapper and the blonde-haired personality have been gushing about each other in recent weeks, but only time will tell just how serious they are about such a commitment. 

"It's pretty serious. I really dig her," Khalifa said during an interview with Hot 97 last Wednesday. "People think it's an image thing and that we're just doing it to be crazy, but like, for real, it's just two great people meeting at a good time. We just like to crack jokes and stuff like that. She's very down to earth, she's very realistic, and that's the way I am. Just seeing stuff for what it is and not being blinded by the lights...I'ma be with her."