Couple Alert: Justin Bieber and Selena Gomez

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Disney princess Selena Gomez and teen sensation Justin Bieber have been spotted together on numerous occasions recently, causing sheer panic for thousands of teenage girls.

The teen stars hung out together on his tour bus after his concert in Miami over the weekend.  They also spent quality time together in Miami.  This isn't the first time JB has been linked to a girl.  Bieber was caught kissing Jasmine Villegas and caused death threats for Kim Kardashian due to their harmless flirtation.

Gomez, 18, and Bieber, 16, claim to be just friends -- and for good reason.  Bieber Fever is not something to be taken lightly and the young celebs aren't taking any chances with their personal security.

Justin Bieber serenades Selena Gomez

More photos and video below:

Check out photos from their weekend rendezvous HERE!

Photo: PicApp