Florence + the Machine recently nixed several European dates due to an unidentified problem with Florence Welch's voice, but the band was back at it Wednesday with an appearance on ABC's 'Good Morning America.' Welch took the opportunity to discuss the fright of losing her voice during a performance -- and how badly she didn't want to cancel any gigs because of her ailment.

“I was singing ... and I actually felt it. I lost about three octaves. I had to sing really low just to get through the show,” she told Robin Roberts of 'GMA,' adding, "I desperately wanted to do the [other] shows ... but I could've caused permanent damage."

Florence + the Machine ran through 'Spectrum' and 'Shake It Out' during their time on the show, and Welch's voice showed no signs of strain -- which is a good thing, because according to the band's website, they're scheduled to resume touring on Friday in Burnaby, British Columbia, and currently have gigs lined up all the way through Dec. 2 in Frankfurt, Germany. Check out their complete itinerary here.

Watch Florence Welch Discuss Her Voice On 'Good Morning America'

Watch Florence + the Machine Perform 'Spectrum' On 'Good Morning America'

Watch Florence + the Machine Perform 'Shake It Out' On 'Good Morning America'