The Biebs Brew blind taste is here brought to you by Michael Bublé.
It's been the running joke that Bublé has been "jealous" of Justin Bieber's recent collabs with Canadian fast food chain Tim Hortons.
He jokingly captioned his test taste "I’m so happy for him! So happy and not at all jealous."
He decided to put the Biebs Brew to the test against some of our favs.
Check out all the behind the scenes and the final verdict below!
ICYMI Bublé recently dropped by the Ellen K Morning Show and here's what happened...
Want to listen to the full interview?
Check it out below.