Long the subject of late January guilt and remorse as one New Years’ resolution after another falls by the wayside, our yearly promises to ourselves might get a new lease of life as our smartphones and PCs keep us on the straight and narrow.

They know what’s trendy and on the radar, they’re always ahead of the curve, and if need be, money is no object. Best of all, just look at the results. Take a leaf out of the books of these celebrity fitness enthusiasts and you might put yourself on the fast track to an A list body.