All the most exclusive interviews from the world's biggest movie stars and artists to brand new breakthrough acts.
Ellie Goulding pops in to see Grimmy and answers listeners questions.
Singing sensation Zack Knight is live in the studio to unleash his voice and talk about his new release.
Dr Meaker meet up with Trevor in the 1Xtra Live Lounge.
The Detroit rapper drops by to talk music, London ladies and the 'big' in Big Sean...
'Fizzy drops by for some evening banter with Charlie and they chat about Scrufizzer's new music, working with Dizzee and meeting Lady Gaga
Sincere, Twin's Best of British drops by for a chat
Vernon and Harry Judd talk to Kimberley about all things Strictly and Girls Aloud
Vernon gets a phonecall from the legendary Sir Bruce Forsyth
Jake Gyllenhaal drops by the Radio 1 Breakfast show and chats to Grimmy
Semtex catches up with Big Sean in the studio.
Charlie chats to the South Londoner about his new music and plays a game of guest roulette with some very insightful answers!
Arjun is on the phone with an exclusive play of his new single Same Girl.
Roach Killa's on the phone to Nihal with an exclusive plays of his new single!
Dr Zeus is on the phone to Nihal with an exclusive play of his new production!
Zane hears from Arcade Fire's Win Butler about his Masterpiece, Neon Bible
Marcus Mumford tells Zane what Neon Bible means to him
Nicole Scherzinger and X Factor contestant James Arthur drop by the Radio 1 Breakfast Show to chat to Grimmy
Kelly Clarkson popped by the Radio 1 Breakfast show to chat to Grimmy
Nicole Scherzinger and X Factor contestant Jahmene, drop by the Radio 1 Breakfast show and chat to Grimmy
Hugh Jackman dropped by the Radio 1 Breakfast Show to chat to Grimmy.
Make up artist to the stars Justine Jenkins gives Gemma some make up advice.
Daley is in the studio and chats to Charlie about his new single feat Jessie J, his signature specs and more
Wretch 32 co-hosts and gives Twin a little surprise!
X Factor winner James Arthur drops by the Radio 1 Breakfast show.
