Idina Menzel has done it before. Once. In New York City. On New Year's Eve. In Times Square.
She sang outside in the cold. Freezing cold.
"Zero degrees," she recalled of that night in 2014.
Well, weather records indicate that it was 27 degrees but she's a Broadway star so we'll let her exaggerate a bit.
Regardless of how chilly it was, that experience prepared Menzel for Friday evening in Minneapolis, when she will kick off the Super Bowl Live series on Nicollet Mall.
"I should fire somebody" for getting her this gig, she joked earlier this month from her home in Los Angeles.
The challenge of singing outdoors in the cold is an inability to hit high notes. She discovered that the hard way, performing her smash "Let It Go" on New Year's Eve.
"I insisted on not lip syncing. A lot of artists do [lip sync on that New Year's Eve show]. Now I understand why," Menzel explained. "I tried to warm up and wear warm clothes. I insisted on singing it in its original key and I don't know why I was so stubborn. And I just totally botched the last note of the song. So many people wrote [unflattering] things about it, and it hurt my feelings. I'm not going to do it again. I'll sing live or I won't sing it all. And here I am again singing the same song outside. I'm a glutton for punishment."