*Boyz II Men are slowly regaining momentum in this modern world of R&B.

In the group’s effort to get back on track the guys will be appearing on Justin Bieber’s Christmas album on a cut called, “Falalalala.”

The announcement came via Twitter when the 17-year-old singer posted it on his account.

“2day i woke up and realized that the group that made me want to sing @BoyzIIMen are now on the christmas album singing with me. #DREAMBIG.”

“i used 2 listen to their music and practice the runs. that is how i learned how to sing. now im in the studio with them making music 2gether.”

And it looks like everyone is quite satisfied with the collaboration efforts. The group tweeted kind words of thanks and praise, calling Bieber “Lil bro.”

The group also stopped by MTV studios to discuss the project and their new colleague.

“He told us his mom didn’t want him to sing ‘I’ll Make Love to You,’ so he’d sneak and go sing it somewhere,” Boyz II Men singer Wanya Morris revealed. “It’s also good to know we’ve influenced such a good artist. It’s something that makes us feel we’ve accomplished [something and] we’re doing our job, [that] a guy so young and so into his craft [is] influenced by three guys from Philadelphia that love to sing.”