Excitement for Justin Bieber’s upcoming ‘Under the Mistletoe’ album swelled when Mariah Carey announced that she had contributed to the project. However, the diva isn’t the only superstar who is featured on the upcoming November 1st release. Indeed, Usher has assisted his Bieber on ‘The Christmas Song (Chestnuts Roasting on an Open Fire)’.

Behind the scenes footage of Bieber and Usher recording the classic tune was released as they continued to fuel the anticipation for ‘Under the Mistletoe’. This latest development came just days after Bieber’s video for ‘Mistletoe’ premiered via VEVO.

Watch the behind the scenes clip of Bieber and Usher in the studio below:

Thoughts?