Sheryl Crow's son Wyatt has morphed into a little drummer boy on the road " and he's not even 2. The 21-month-old has taken to his mom's profession, touring and all, a delighted Crow tells People. "He's very musical," the Grammy winner said in West Hollywood at Thursday's Me&Ro boutique's reception for the book Note to Self, to which she has contributed."And he has these funny little dances he does. He plays the drums. He