Taylor Swift and Justin Bieber predictably stole the show at the iHeart Radio Awards last night (April 3).

Everyone from U2 to Calvin Harris rocked up to the annual ceremony in California, but it was the 1989 and Purpose popstars who won big.

Clothing, Mouth, Human body, Dress, Style, Bangs, Logo, Latex, Fashion, Fashion model, pinterest

Taylor bagged Best Female Artist and Best Album, as well as picking up a gong for her recent tour. 

Justin was also recognised too - and not just for his new hair do. The singer took home trophies for Best Male Artist and even Best Dance Song for 'Where Are U Now'.

Justin Bieber at iHeart 2016pinterest

Adele flew the flag for the UK by picking up Song of The Year for 'Hello'

Elsewhere, there were wins for Drake in the Hip-Hop section, Chris Brown and The Weeknd in the R&B categories, and Foo Fighters in the Rock field.

And Taylor gave a heartwarming speech that was basically a dedication to boyfriend Calvin. Cute.