I would want Carrie to sing a duet with Luke Bryan because his low voice would complement her high voice very well and they could really sound great together.

Carrie Underwood has a voice that can turn heads in an instant! I think her and Hunter Hayes could make a great duet together. Its no secret I'm a HUGE Hunter Hayes fan as well,so lets just say I would be more than happy if I could hear a duet from my two favorite artists! My friend and I sing their songs every time we get together, it would be amazing to be singing along with them at their concert! Thanks Hollywood Gossip!

Carrie Underwood has such a powerful voice she is sure to overpower any guy who sings with her. But I think maybe Carrie Underwood and Adam Lambert do some sort of "poppy" duet, I think it would sound great! I also like to compare her to Martina McBride. Hope I win! haha my wife would LOVE these tickets considering she has never ever been to a live concert, this would be a good surprise for her! ;) thanks guys!

I would like her to do a duet with John Berry.

I wouldn't mind to she her and keith urban perform a duet.