France's NRJ Music Awards 2015 invited some pretty big-name guests this year to perform at the show. Justin Bieber performed "What Do You Mean?" before receiving an NRJ Honor. Major Lazer and DJ Snake performed their summer smash single "Lean On" with MØ. Coldplay played a live debut of their new single "Adventure of a Lifetime" and Adele performed "Hello" for the second time ever. Check out all four of the performances below and let us know which one your favorite is.