Bacon introduced the band by quipping, "What do you get when you put two brothers and two sisters in a band? A big fat melting pot!"
After the stunned LOVE ME LIKE YOU rockers refused to perform, Bacon attempted to apologise, but management refused him access to the stars - who were heartbroken on the night which should have been the most exciting of their pop career so far.They wrote in a statement on their website, "We would like to apologise to anyone who was disappointed by our non-appearance on TOTP on Sunday (believe us, we were disappointed too.)
"Due to derogatory, unfunny remarks made during the guest presenter's introduction to our performance, we felt we had to make a stand and leave.
"It was an important day for us and should have been special. We didn't take this decision lightly but stand by it."