Christina Aguilera helped a couple get engaged during their favourite song

This couple made their proposal even more memorable by getting Christina Aguilera to help them.

Ben Roark was attending the concert in Chicago on October 16 when he saw the proposal, saying: “This couple had travelled to the Detroit show 3 days before and was able to see the concert due to Christina Aguilera being sick,"

Roark added: "But they were able to get tickets to the Chicago show, and were given this special opportunity to have a surprise proposal on stage! The audience was crying and cheering the entire time!”