Rob Lowe is ‘Obsessed’ With Watering His Christmas Tree With 7UP — But Should You?

Rob Lowe may stick to a low-sugar diet, but his Christmas tree certainly doesn’t! 
During an appearance on an episode of The Ellen DeGeneres Show on Monday, the Holiday in the Wild star, 55, admitted to feeding his festive fir the same sticky-sweet concoction every year: half water and half 7UP soda. 
During the episode, Lowe sat down to catch up with DeGeneres while his son John, 24, was backstage, poised to comment on — and troll — his dad during the interview. The