raye, rag'n'bone man and charlie xcx are just some of the artists set to perform today. let's speak to bbc newsbeat presenter prai over at the festival in luton. talk us through what we can expect today. talk us through what we can expect toda . ., . ., ., talk us through what we can expect toda . ., _, ., ., ., ., �*, today. hello, welcome to radio one's bic today. hello, welcome to radio one's big weekend — today. hello, welcome to radio one's big weekend in _ today. hello, welcome to radio one's big weekend in luton, _ today. hello, welcome to radio one's big weekend in luton, just _ today. hello, welcome to radio one's big weekend in luton, just outside l big weekend in luton, just outside london, not too far from london. big weekend in luton, just outside london, not too farfrom london. it has really got going. today, big names on the line—up, raye, ajay tracy, charli xcx, so a lot for people to look forward to today. you can see the view behind me, the main stage, but if i can set the scene for you, last night, the field behind me that is slowly filling up as