Justin Bieber: The Making of 'Mistletoe'!

Justin Bieber heats up the Beira-Rio stadium stage in Porto Alegre, Brazil on Monday night (October 10).

The 17-year-old musician tweeted after his performance, “tonight was the last show in BRAZIL and I will never forget it…been an incredible week here. Eu amo voce Brasil!!”

Argentina is next!

Justin also just posted a new behind-the-scenes video for his upcoming single, “Mistletoe.” Check it out below!

Important dates for everyone to remember — October 18th, the video comes out. November 1st — the record hits shelves!