The star has made no secret of his love for a Hollywood exercise class known as PlyoJam – also known as the sexy butt workout.
His celebrity trainer Jason Layden told us the telly star became hooked on the dance workout after his wife brought him to a class.
Jason, Plyojam’s creator, says the class – a combination of dance and plyometrics training – is “all about booty dropping and a** shaking” and James was a huge fan from the outset.