Marina + the Diamonds

From Beyonce's 'Formation World Tour' to Adam Lambert's 'Original High Tour' to Madonna's 'Rebel Heart Tour', which live show was ultimately the best?

Marina Diamandis, flawless frontwoman of Marina and the Diamonds, appeared on Good Morning America Wednesday (March 25) to talk about her new album, Froot, and perform her latest single "Forget."

Congrats are in order for Marina + the Diamonds. She won PopCrush's epic Battle of the Brits! This battle royale carried on for two months – since July 3 -- and Marina + the Diamonds ultimately prevailed as the winner!

After stealing the title of favorite Singer-Songwriter, Marina + the Diamonds is going head-to-head with Electronic artist champ Calvin Harris. Which superstar will move on the the championship round?