It’s not some big secret that Justin Bieber and Martin Garrix are good friends – they were very recently seen vacationing together and hanging out on Instagram and Snapchat. Now, it seems the two have found the time in both of their busy touring schedules to hang out again, and this time play some music together.
Rather than create a brand new original collaboration – we wish – the two chose to delve into Taylor Swift‘s back catalog for a cover of “I Knew You Were Trouble” from her album Red. Bieber takes most of the charge, handling vocals and guitar, while Garrix mostly just waves his hands and provides moral support, but we’ll take it.
Check out the brief clip below: 
https://youtu.be/_u5UNM2PPZ8
