One Direction Helps James Corden Get Ready For His First Episode Of The Late, Late Show

What we love most about One Direction is that they’re always down for a good joke!
The band joined James Corden to promote his first episode of The Late, Late Show, but there were some imposters among them!
[ Video: Amy Adams Geeks Out Over One Direction In FRONT of One Direction ]
Harry Styles, Liam Payne, and Louis Tomlinson were there to give the show a thumbs up, but the fakers definitely stood out.
Find out what gave them away (above)!
And don’t forget to tune in on March 23rd!