Prancerciser Joanna Rohrback has lent her slinky moves to the video of John Meyer’s new single Paper Doll and as you would expect, the viral sensation gives a stellar performance. Her trousers may resemble American Apparel’s disco pants, but her signature style of get-fit dancing is more the stuff meadows, and unicorns, and narcotics, than booty-shaking, and her performance for Paper Doll is a fine example of it. 

She’s not the only one who’s got a novel way of working out, as the treasure trove of exercise videos on YouTube goes to prove. Click the gallery to see the best and weirdest videos going, including diamond-clad Zsa Zsa Gabor’s softcore session with a pair of pumped-up hunks, how you can gurn your way to looking twenty years younger and a pack of poodles’ take on Olivia Newton-John’s classic regime.