WATCH: Justin Bieber and Usher Reunite Onstage in Atlanta

Justin Bieber is pulling a Taylor Swift on his Purpose World Tour and bringing out all his friends at different stops.

Last night’s show in Atlanta was a pretty touching one, however, as the one and only Usher showed up to Philips Arena. In case you forgot, Usher and the Biebs go way back – when he was just a youngin’, Bieber posted an acoustic cover of Usher’s 2001 hit “U Got It Bad” to Youtube, and the rest was history as Usher became the young teen’s mentor.

Starting off with an unplugged cover of the R&B singer’s “U Got It Bad,” Bieber paused and Usher walked out on stage to the crowd’s loud and crazy screams. They continued to sing the song together, followed by a couple duets of “I Don’t Mind” and “U Don’t Have To Call.”

“U Got It Bad”:

“I Don’t Mind”:

They’re like family, after all.

Just the day before in Atlanta, Bieber welcomed Ludacris to the stage where they performed “Baby”:

We can’t wait to see who Justin will bring out next.