Hillary Duff has Tweeted a picture of herself 'Owling' for husband Mike Comrie.

Which begs the question:

Has the popular and bizarre act of 'Planking' become yesterday? Well, you can't say no as yet another odd, but funny act called 'Owling' is on the rise, and sweeping across workplaces around the world.

Believed to have originated in Australia, 'Owling' is the act of sitting in a perched position while looking off into the distance imitating the pose of an owl.

Hillary Duff isn't looking off into the distance. Her form of 'Owling' includes gazing lovingly into her husband's eyes.