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Justin Bieber is the man of the hour over in Brazil. The teen singer, who is currently performing there, as well as vacationing with girlfriend Selena Gomez, posed for some fans on his hotel balcony. In fact, he seems to be leading them in some kind of song. That’s adorable.

Ready for the most exciting news though? We all know Christmas as the time to hear carols and Mariah Carey‘s “All I Want for Christmas.” Well, now we look forward to hearing the latter with Justin Bieber. According to Access Hollywood the two are teaming up to do a remake of the Christmas classic for Justin’s Christmas album, Under the Mistletoe.

PHOTOS: Justin Bieber & Selena Gomez Enjoy a Romantic Helicopter Ride

I don’t know how I feel about a new version of the song. I mean, Mariah! Hopefully Justin won’t screw it up. One thing he is on top of is his charities. He talked to Access Hollywood about some that he is particularly passionate about and it’s actually quite sweet. Check out a clip of his passionate self after the jump.

Justin has been making his rounds of Central and South America. Just prior to Brazil the singer was spotted loving Mexico City. I wonder what kind of crazy dates he is taking Selena. I mean, really, nothing can beat renting out all of the Staples Center to watch Titanic. Check out the gallery for photos of Justin waving around the Brazilian flag and singing with fans.