Mackenzie Phillips claims she snorted coke and drank wine with Valerie Bertinelli during One Day At A Time lunch breaks

Mackenzie Phillips Claims She and Valerie Bertinelli Did Cocaine on Set

Valerie Bertinelli Channeled Divorce & Loss of Eddie Van Halen into Acting Return (Exclusive)

Valerie Bertinelli, 66, reveals she was mistaken for a 'prostitute' in her 20s when partying in Brazil