This isn't a TV show, but it is in America. I did one of my periodical google searches on Hayley, and found this article. PSU is Plymouth State University in New Hampshire. Here are the important/interesting parts; I can't find any videos:
On May 12 and 13, PSU’s Contemporary Dance Ensemble will showcase original choreography by students and faculty. Both shows start at 7 p.m. in the Hanaway Theatre.
The show features works by three faculty members and four student choreographers.
One of the student pieces is choreographed by Molly Henry, a sophomore elementary education major. Titled “Dark Waltz to Light,” this ballet-contemporary piece is about persevering through dark times, because the serenity of morning will always come.
The dance features Hayley Westenra’s songs “Dark Waltz,” and the intro to “Listen to the Wind.” Hayley Westenra is an opera singer, and former member of Celtic Woman. The two songs featured are from her contemporary albums.
“The song and Hayley's voice are so hypnotizing in this beautiful and captivating way, which is how I feel when I see really good ballerinas on stage,” Henry said.
This is Henry’s first time choreographing a large group piece. “It’s been incredible to see what was just ideas in my head and illegible drawings in a notebook come to life in my dancers’ bodies and on the stage,” she said.