Derek Hough couldn't be more in love with his wife and mother of his child Hayley Erbert 💖 "Seven weeks postpartum, and my amazing wife Hayley taught a little combo for this audition effortlessly and beautifully," the 'Dancing with the Stars' legend, 40, wrote. "In awe of this woman ♥️ Fall in love again and again with new eyes and different ways." 📽️ : #DerekHough #HayleyErbert