Justin Bieber and Ludacris Perform ‘Baby’ at ‘Purpose World Tour’

Justin Bieber landed in the ATL for the first of two shows on his “Purpose World Tour” last night. During Tuesday’s show at Philips Arena, the Biebs performed his hits and new material off his chart-topping album Purpose. He also surprised the crowd by reuniting with his pal Ludacris for a performance of their 2010 smash “Baby.”

“Reunited Rockin wit the Biebs Surprised ATL tonight. #showkillas,” tweeted Luda.

Watch their surprise reunion below.