Nope, surprisingly it wasn't Harry Styles. Louis Tomlinson was actually the 1D singer partying it up with Justin Friday night.
One Direction is currently on a tour break, but hanging out in the United States. Louis reportedly looked weary as he left Justin's crib, wearing a "British Rogue" hoodie and a smirk. He wasn't seen leaving with any females, either.
This hangout was probably well needed. Louis got into a heated social media exchange with former band-mate Zayn, prompted by producer Naughty Boy sharing a filtered snap of them in the studio, earlier this week. You can read all about that, here.
What do you think about Bieber and Louis' new friendship?