Lorde's encounter with Pitbull was "not dissimilar to meeting the president".

She wrote on the site: "i met pitbull backstage, felt this wave of his charisma and loveliness wash over me, probably not dissimilar to meeting the president. (sic)"

Lorde - who performed her track 'Yellow Flicker Beat', which she penned for 'The Hunger Games: Mockingjay Part 1' soundtrack, at the ceremony in Los Angeles - also posted a cryptic tweet prior to her performance, which she described as the "saying farewell.. to this era".

She wrote: "performing yellow flicker beat tonight - it's gonna be a cool one; kind of saying farewell, for now, to this era. tune in from 5pm. (sic)"

The Grammy Award-winner was clearly looking forward to her evening, as she also posted: "AMAs-ing (sic)"

Unfortunately, the 'Royals' hitmaker - who was nominated for Artist of the Year, Favourite Female Artist, Favourite Album and Favourite Artist in the Alternative Rock category - didn't take any awards home at the ceremony in the Nokia Theatre, losing out on Artist of the Year to 5 Seconds of Summer, Favourite Female Artist to Katy Perry, Favourite Album to One Direction's 'Midnight Memories', and the Favourite Alternative Rock Artist to Imagine Dragons.