AceShowbiz -

Despite her effort to downplay rumor that she's dating Justin Bieber, Selena Gomez was spotted getting cozy with the Canadian singer over the weekend. Sporting a white top, the Disney songstress visited Bieber in his tour bus after his My World concert on Saturday night, December 18 at the American Airlines Arena.

Earlier that day, Gomez, 18, and Bieber, 16, were photographed strolling the streets of Miami Beach. Wearing causal outfits, the two young stars walked close to each other and shared some good laughs. Without mentioning his outing with her, Bieber tweeted, "Waking up in Miami is a beautiful thing. have a feeling the show tonight is gonna be crazy."

Back in July this year, Selena Gomez told George Lopez that she was once asked by Justin Bieber to take her heels off because she was taller than him in those shoes. She refused his request at that time, saying "I'm not going to take off my heels. You're short, embrace it." Now, Gomez is seen ditching any platform footwear when going out with him. She was spotted wearing either ballet flats or non-heeled boots, making them equal in height.