As is fitting for a song that's all about phone calls, you can only hear Bieber's remix by calling (231) 377-1113 and listening over the phone. Or you can YouTube search and listen to a recording someone else made of the phone call, but we suggest doing the real thing. It's pretty damn cool.
Don't expect an amazing recording, though. The track sounds just like you'd expect a song to sound like that's been recorded on a phone.
All of this didn't come as a total surprise. Justin's been teasing his fans on social media about a "Hotline Bling" remix. No one knew you'd have to actually CALL him to listen, though! We're pretty sure you can file that one under "swaggy."