Rob Lowe and his 28-year-old son, John Owen Lowe, got downright serious — and a bit emotional — during their latest appearance on .The father-son comedic duo had a lot banter during Thursday's show, trading barbs and zinging each other. But the conversation turned serious, after Barrymore opened up about her sobriety journey and sharing that her family supports «me through my pitfalls.»She then commended Rob and John Owen for supporting «each other through every high and low.» Rob chimed in and talked about being in recovery for 33 years now.