January 7, 2011 6:56 pm Holly Madison Mum on Hugh Hefner's Engagement Holly Madison says you’ll have to watch the new season of her reality show “Holly’s World” to see her reaction to Hugh Hefner‘s recent engagement to 24-year-old Crystal Harris. US & World Videos 0:40 Watch: Police dog tracks and finds missing 85-year-old woman in Colorado 2:19 11-year-old celebrates teachers with appreciation snack cart 1:19 Met Gala 2024 after party looks: Cardi B, Lana Del Rey, EmRata 4:58 Luke Hemmings embraces childlike wonder in new album ‘boy' 6:22 Craig Melvin compares ‘TODAY' crew to NASCAR