The 17-year-old singer played a quick pick-up game of basketball with pals before heading back inside to record.
“What an amazing song last night..The world isn’t ready! @justinbieber,” Austin tweeted. “Day 2! #StudioNights @justinbieber @birdman5star”
Justin added, “like i said…we live in the studio. #music”
The day before, the guys hit the studio together for the first time. We can’t wait to see what they have in store for the fans! Justin reportedly gave Austin a song he wrote!