Article continues below advertisementSpencer Pratt had a legitimate reason for missing his pal Brody Jenner's star-studded wedding. When a fan popped the question on TikTok about his absence from Jenner's nuptials on Saturday, July 12, Pratt laid it out clear: he was busy celebrating another wedding - his sister-in-law's!Article continues below advertisementSource: MegaSpencer Pratt and Brody Jenner skyrocketed to fame after appearing on MTV's 'The Hills.