Khloé Kardashian celebrated her 40th birthday in style, marking the occasion with a pool party attended by family and friends, and showing off her new brunette hair color. Her mother Kris Jenner and sisters Kim and Kylie shared heartfelt tributes on social media. Ex-partner Tristan Thompson, despite their tumultuous past, also posted emotional messages calling Khloé his 'best friend' and praising her as an 'incredible human being,' which drew backlash from fans who have not forgiven him for his infidelity. Khloé's fans expressed their support for her while criticizing Tristan's perceived insincerity. The birthday celebrations included numerous floral arrangements and well wishes from loved ones, including a special video message from Dolly Parton.