By Dailymail. Katie Lee's kitchen skills don't get in the way of her having a stellar beach body. On Friday, the year-old chef was spotted on the Miami beach showing off her trim physique in a tiny black bikini. The ex-wife of Billy Joel looked stunning in the simple string number that highlighted her toned tummy and tan body as she frolicked in the Florida sands. Beach beauty: Katie Lee was spotted soaking up some sun at a Miami beach Friday. After a cool soak in the water, Katie emerged to reveal her flat abs and perky bottom.