This app will stop working on 3rd April 2017. But you can still listen to BBC iPlayer Radio via your browser by visiting bbc.co.uk/radio
Greg has Feet Up Friday people in to compete to play their favourite tunes!
BBC Radio 1
Another 10 Minute Take Over and more musical goodness.
Andrew Garfield and Emma Stone are Greg's big guests, plus the film news with Rhianna.
Greg's been chatting to the author of a One Direction book, but he has a secret mission!
Help another listener out of their dilemma in Ask the Nation.
On Monday we had a Live Set from Florence + The Machine
Greg has highlights from Florence and The Machine at Radio 1's Hackney Weekend.
More listeners do battle in Feet up Friday.
Jason Segel is Greg's big Thursday guest, plus Rhianna with the latest movie news.
Just the right amount of wrong!
Someone gets surprised in Star Caller!
Greg comes live from Hackney at the Radio 1 and 1Xtra Academy.
Jaime Winstone is Greg's special guest, plus Rhianna's here with the latest film news.
Cheryl Cole is Greg's special guest.
Greg has a big announcement about Cheryl Cole.
Greg comes live from the Radio 1 and 1Xtra Academy in Hackney.
Simon Pegg joins Greg and Jamal Edwards is on the line from the Hackney Academy.
Rhianna's here with the latest film news.
Dizzee Rascal chats to Greg, live from the Radio 1 and 1Xtra Hackney Academy.
Greg catches up with the winner of The Apprentice.
More listeners do battle in Feet Up Friday.