Bindi Irwin Instagrams Tribute to Her Late Father on Her BirthdayEthan and Grayson Dolan — also known asthe Dolan twins— may be the stars of one of yourfavorite YouTube channels sunglasses. The 18-year-old YouTuber is often seen wearing shades of all shapes, sizes, and colors, so it makes perfect sense that she decided to launch a sunglass collection of her own. Grayson went on to note: "We were never even presented with a contract. I think the whole Team 10 thing started probably two years after we first started doing everything." his initial exposure to the singer. "My very first concert was Janet Jackson’sAll For You