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.