'Fun.' 'scooped' the awards for Song Of The Year for 'We Are Young' (shared with Janelle Monae for her sterling work on the song) and Best New Artist, while Clarko won Best Pop Vocal Album for 'Stronger'.
Beyoncé and Usher both walked away with awards for Best Traditional R&B Performance (for 'Love On Top', which was released approximately 800 years ago) and Best R&B Performance ('Climax') respectively, while Gotye won Best Pop Duo/Group Performance and Record Of The Year for 'Somebody That I Used To Know'.
Taylor won for 'Safe & Sound', that song from The Hunger Games that isn't as good as 'We Are Never Ever Getting Back Together'.
You can see the full list of winners here if you like.