Glass Animals frontman Dave Bayley has admitted he was so self-conscious when the band started out that he used to hide under a duvet while he was singing.
The indie rocker confessed he didn't think of himself as a singer before the band got together in 2010 and found their early performances nerve-wracking.
"I can't speak for the others but I was really nervous. I didn't consider myself a singer, I'd never done any singing before Glass Animals," he said.
Asked how he knew he could sing, Dave said: "I didn't. People say I'm OK now but I think I have a long way to go.
"Drew (MacFarlane), our guitarist, told me I had to sing, and I was trying to get him to sing, but he wouldn't.
"I spent the first few days of recording our first ever EP with a duvet over my head, singing into a cheap microphone. I didn't want anyone to look at me. It feels like only recently we've started getting comfortable on stage."
Dave said although they have gained in confidence now, when they first got together the foursome's sound was "quite tame and self-conscious".
"We were really worried about what our friends and family would think, basically," he explained. "We kept everything quite toned down, and then we spent six or seven months experimenting, trying to find out what to do on the record, and after we finished those tracks, we had a much better idea of what we needed to do and how we wanted to sound."
But he admitted his mum is still waiting for him to "get a proper job". "We have had that conversation several times, although more recently they have been so supportive and even started liking the music. They see I'm busy and that must be a good thing. They've realised I'm doing something," he said.
Glass Animals released their debut album Zaba on June 9 and are now touring the UK.
:: For more information go to www.glassanimals.co.uk.