Huw Stephens sits in for Sara Cox and Big Thing artists Gorgon City drop in to say hello!
Sara's midweek DJ is Jen Long from BBC Introducing.
Sara has the Radio 1 Big Weekend competition - she can't stop saying Big Weekend!
Sara reveals how you can win tickets to the Big Weekend!
It's Friday, it's sunny and we've got #ReasonsToWoop.
Stylo G, Sara's Big Thing artist, drops in on the studio.
Danny Howard is Sarah's Midweek DJ and there's vintage McFly in the Live Lounge.
Strange tales and smiles with Sara.
Phil and Alice are Sara's Midweek DJs.
Sara has some vintage Live Lounge action from Kasabian.
Sara chats to Jessie Ware, who's in America playing at the Coachella festival!
Rudimental are in the Radio 1 Live Lounge with Sara.
Sara has decided to unfollow Grimmy on Twitter - he has too much fun!
After a beautiful of almost sunshine, Sara dedicates today's show to the good weather.
Sara Cox has two callers playing Dodgy Balls at the same time
Wretch 32 drops in on the show and Sara has vintage Live Lounge action from Plan B.
Annie Mac comes in to play Bass or Bass - a DJ or fish based game.
Sara's back from holiday, and starts the day with an epic Boot Camp... hilarity ensues!
Annie Mac sits in for Sara Cox with her Big Thing artist Russ Chimes dropping in.
Annie Mac sits in for Sara Cox with a Revision Power Hour!
Annie Mac sits in for Sara Cox with Paramore in the Live Lounge.
Annie Mac sits in for Sara Cox with Everything Everything in the Radio 1 Live Lounge.
Annie Mac sits in for Sara Cox with a stack of Number 1s, plus a No 2 or two!
Sara catches up with celebrity travel correspondents caught up in the bank holiday traffic