One Direction perform 'Ready To Run' SNL Saturday Night Live (VIDEO)

One Direction sang 'Ready To Run' on SNL Saturday Night Live on December 20, 2014.

This was their second song during the Christmas episode.

They performed Night Changes earlier as well as guesting on the Girlfriends Talk Show.

Go Niall! Go Zayn! (His neck vein OMG)

One Direction will have a special on NBC next Tuesday.

Their latest album FOUR is available now.

Watch the video here: