The Burn singer admitted she was still feeling ill when she took to the stage in the California desert last Friday, and is amazed she got through her performance without vomiting.She explained: "I was really sick. I was in South America and I picked up something; my whole band did. So that was quite messy on the tour bus!"I got a really weird bug and Coachella was, like, the end of it, but I held it together."Goulding will be back at Coachella on Friday for the festival's second weekend, and she admitted she'd much rather be performing in the sun at a US music event than the rain at a festival in her native UK.She told US chat show host Chelsea Handler:"Festivals in England are really messy, muddy, dirty; I've had to stop my set before because it's really wet and you can't perform."