Description:Christened the "Mass Moon Wedding," 2,500-plus couples gather yearly for the legendary group marriage ceremony in South Korea, and ET's got your sneak peek at the TLC documentary going inside the bridal phenomenon. RELATED: TLC's 'Strangest Addictions Yet'?
Officiated by the Unification Church's founder and self-declared messiah, Reverend Sun Myung Moon, the 90-minute ceremony attracts couples from around the world looking to exchange nuptials or renew their vows in the presence of the holy one(1:50)