Hilary Duff and husband Matthew Koma take their kids to meet Santa Claus in LA: 'We love this time of year!'

Hilary Duff swears by THIS one secret hack to help fit in a workout during the hectic holiday season: 'We have so much going on!'

Hilary Duff keeps it casual in frayed blouse and brown sweats as she and husband Matthew Koma enjoy a family day with their kids in Studio City

Hilary Duff reveals how she maintains her 26in waistline during the holidays when food is everywhere