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Simon Cowell has Directioners blood racing after complimenting the boys newest video in the making, calling it the ‘best video ever’.

After checking out the video, Simon tweeted: “The new one d video for best song ever is their best video ever, these boys are very very smart.”

The boys recently announced that their next track would be, Best Song Ever, and Directioners were given a sneak preview of the song in a new trailer for the 1D3D movie This Is Us.

And if Simon’s reaction is anything to go by, the video won’t disappoint.

Best Song Ever will be released on July 22.

Watch the latest trailer for This Is Us below: