Exclusive: Jessie J to Host 2015 MTV Movie Awards Pre-Show

Before Amy Schumer makes her hosting debut at the 2015 MTV Movie Awards, Jessie J will host the live Pre-Show on Sunday, April 12, at 7:30pm ET, Billboard can exclusively reveal.

The British vocal powerhouse will join MTV's Josh Horowitz on the carpet as the parade of stars make their way into L.A.'s Nokia Theatre for the MTV Movie Awards' 8pm ET start.

Amy Schumer & Bill Hader Bully Moviegoers in MTV Movie Awards Promo

Cara Delevingne, Nat Wolff and author John Green (The Fault in Our Stars) will also be on hand to introduce an exclusive sneak peak of Paper Towns, the latest movie adapted from one of Green's novels.

The MTV Movie Awards Pre-Show will also see the night's first award -- "Best Hero” presented by Mtn. Dew Kickstart -- revealed. Nominees for the fan-voted Best Hero category will be announced April 2.