As far as his relationship with Amber Rose's bestie, Rob explained:
[Image via WENN.]
We hope everyone just saw that performance we got from Kendrick Lamar and Imagine Dragons!! (We have it above, just in case!)
Honestly, we thought it was an insane idea when we heard it was happening, but we've gotta hand it to the Grammys — it was AH-MAYZING!!
So freaking fab!!