Rob Lowe - who has a memoir out called Stories I Only Tell My Friends - talked to CNN's Piers Morgan about being clean and sober. Lowe says he has no desire to have just "a glass of wine" because it would lead to more glasses of wine. Rob Lowe says rehab doesn't work until you want to get better for you. Lowe also says Charlie Sheen is wrong that rehab doesn't work. Take a look: