The Voice presenter Emma Willis and her Busted star husband Matt once made their kids sign contracts before trying fun activities like trampolining.
Emma, 46, and Matt, 39, insisted their three kids put pen to paper with a promise to never miss a week once they had taken up a new hobby.
Singer Matt says making Isabelle, 13, Ace, 11, and six-year-old Trixie sign the contracts taught them about commitment.
