Grimmy plays Call or Delete with McBusted!
Daniel Radcliffe is Nick's special guest.
Rita Ora co-presents with all the backstage gossip from the BBC Radio 1's Teen Awards
Labrinth and Ella Henderson join Grimmy to help co-host the show ahead of the Teen Awards.
Nick is joined by Dermot O'Leary.
Professor Brian Cox joins Grimmy for Call or Delete!
Ben Howard drops in & listener superfan Mikala performs live for him!
Grimmy talks to Pharrell Williams and reveals the first of Radio 1's Teen Heroes for 2014
Unique humour and great music - it's Grimmy and the Radio 1 Breakfast Show.
Paul Hollywood is Grimmy's special guest.
Ellie Goulding plays Call or Delete with Grimmy.
Unique humour and great music with Grimmy and the Radio 1 Breakfast Show.
The TOWIE cast drop by for Happy Hardcore FM & Monki spins your requests on The Nixtape!
Ella Henderson joins Grimmy to play Call or Delete.
Grimmy is trying to set records. Plus Tess Daly and Claudia Winkleman are on the show!
Al Jean, producer of The Simpsons, joins Grimmy and Jessie Ware pops in to say hello.
Strictly Come Dancing's Scott Mills, Caroline Flack & Frankie from The Saturdays pop in.
Nick is joined by some of BBC Introducing's recent success stories.
Dynamo joins Grimmy for some Call or Delete.
It's only Elmo and Cookie Monster on the show!
Denzel Washington joins Grimmy in the studio.
Lacey Turner plays Call or Delete with Grimmy.
Douglas Booth and Sam Claflin join Nick in the studio.
Nick decides he's going to set a new world record, and Charlie Sloth does the Nixtape