WATCH: James Corden reveals he's the fifth member of 5 Seconds of Summer

In a hilarious mockumentary for The Late Late Show

Published 1st Dec 2015

James Corden has revealed he was the fifth member of 5 Seconds of Summer in a joke documentary for The Late Late Show.

In it the host jokes "I saw them and I knew with my help they have the potential to be a great band".

It shows the band rehearsing and they discuss how the comedian became the fifth member.

But it all goes wrong for the new 'lead singer' as the real band say they had to get rid of James because he wanted all the attention.

He didn't take the rejection well...

Watch it below.

**WARNING: Contains strong language**