Kelly Clarkson struggled to enjoy her first Grammy Award wins as she believed she had cancer.
The American Idol alumni performed and won two awards at the 2006 ceremony, but could not savour her triumph as a doctor had told her it was likely she had cancer.
Speaking on Billboard's Pop Shop Podcast about her victory she said, "Well, not many people know this, not to be a Debbie Downer, but I was told that morning that I had cancerous results for something... And then when I won, I thought, 'Oh my god. This is like God giving me one more thing before something horrible happens.'"
Kelly, 34, teared up when accepting her award for Best Female Pop Vocal Performance, which she won for her song Since U Been Gone. She did manage to hold it together while performing her track Because of You at the ceremony.
The star returned to see her doctor the next day and found out her cancer test results had been mixed up.
"I went to the doctor's the next day and they apologized for mixing up results," she explains. "And I was like, 'Are you for real?!' I was like, 'You completely ruined my entire (experience).' The first time for an artist... as a kid watching the Grammys, that was a big dream! It was kind of the worst/greatest day.
She admits she struggled to contain her fury after learning that she'd been the victim of a mix-up, saying, "And the next day was also the worst/greatest day because I wanted to punch someone. I was like, 'Who mixes up results? Why wouldn't you test again?'
"It was very much a roller coaster ride, that day, for me. So, it's kind of unfortunate, but a lot of the moments got stolen from that mishap. But hey, I didn't have cancer!"
Kelly has since gone on to win another Grammy, with her album Stronger winning the Best Pop Vocal Album prize at the 2013 ceremony.
Stronger's victory in the category repeated her other 2006 triumph, as her record Breakaway won her the Best Pop Vocal Album trophy that year.