The September 28, 2011 episode of The X Factor started hot in the cold rainy Chicago auditions.

First up were Brock and McKenna Sollinger who have been singing together for four years. McKenna calls the duo “best friends.” Brock, on the other hand, is madly in love with her and has not told her yet.

Well, not until she watches tonight’s episode. Man, I wish I could see McKenna’s face as she learns…

The duo received a standing ovation from the audience singing Colder Weather by The Zac Brown Band. The judges followed by giving the pair four votes to advance.

L.A. Reid: “You just made my day, I really enjoyed you.”
Cheryl Cole: “Your harmonies were spot on and your vocals so controlled.”
Paula Abdul: “I think your vocal blend is lovely.”
Simon Cowell: “Your voice is sensational.”

Watch Brock & McKenna’s (Or Makenna) performance video clip below: