Turns out Ant and Dec have a secret third member who writes all their jokes

Meet Andy Milligan, the third member and the secret behind the success of Ant and Dec.

Andy, who is currently working with boys in Australia for I'm A Celeb, has also previously worked on Saturday Night Takeaway and Britain's Got Talent. He has been working with them and writing their scripts for 12 years. While he keeps a low profile and doesn't crave the spotlight, he's not completely anonymous either with his Twitter biography reading, "Written all things Ant & Dec for a canny while." He also has taken to the stage with Ant and Dec, and the rest of the crew, to collect awards. According to The Mirror, a source said:

"It might be Ant and Dec on screen, but off it they regularly work as a trio and it is Ant and Dec and Andy. The boys have him involved in all of their big shows – Takeaway, Britain’s Got Talent and I’m A Celebrity – and haven’t made a project without him in more than a decade. "This year there was lots of scrutiny around Ant, but once again Andy has helped the boys look brilliant on screen.”