James Corden's 'The Late Late Show' just got a serious endorsement, thanks to Harry Styles, Liam Payne and Louis Tomlinson.

The three musicians appeared alongside Reggie Watts and James under the guise of "One Direction" -- even though two of the men clearly aren't in the band! Reggie pretended to be Niall Horan, while the late night host claimed he was Zayn Malik.

Each band member introduced himself before the entire group said together, "And we're One Direction!" (Props to Harry, Liam and Louis for keep straight faces during the video.)

Liam then goes on to explain that the band will be watching 'The Late Late Show with James Corden' -- which Louis adds starts March 23. Does this mean One Direction will be appearing on the show? Performing? Playing with puppies? A Directioner can dream ...

In the meantime, we'll be busy obsessing over these On the Road Again tour photos and sobbing quietly over 'Night Changes.'

See One Direction Over the Years