If 你 were to have a duet with with your 最喜爱的 singer, which song would the two of 你 sing?

I'd 爱情 to do a duet with Idina Menzel! She's my 最喜爱的 Broadway actress and singer, and one of the most inspirational women I've ever seen.
I'm a massive 粉丝 of symphonic metal bands like Within Temptation, and I think her powerful voice would fit perfectly. I chose the song from above because it's already a duet.