Jennifer Aniston has 'greatest day' of her life doing Courteney Cox's hair

Jennifer Aniston is always ready to lend a hand to a friend, even if it means pointing out a small flaw along the way. The actress recently teamed up with her longtime pal and former Friends co-star Courteney Cox for a fun new video shared to LolaVie's social media on Friday, September 5. In the clip, Aniston, 56, gives 61-year-old Cox a mini makeover using products from her own haircare brand. "This is the greatest day of my life. I get to finally blow-dry Courtney's hair," Aniston exclaims as Cox relaxes in the styling chair. The Morning Show star starts by spritzing Cox's hair . . .