It's official. We can't deny it anymore. The Harry Potter era is coming to a close. And to celebrate, the cast have stepped out in London for the premiere of the last Potter flick, Harry Potter and the Deathly Hallows Part 2.

Emma Watson, Daniel Radcliffe and Rupert Grint hit the star-studded red-carpet at London's Trafalgar Square on Friday for the movie's world premiere.

Click through to check out pics from the event.

We can't believe we're finally saying goodbye to Harry, Ron and Hermione!

Waah!