Ex on the Beach (US) - Season 1
Hosted by rapper and actor Romeo, the terrifying social experiment/reality show brings together singletons from shows such as The Bachelorette, Big Brother, Bachelor in Paradise, The Challenge, Vanderpump Rules, Are You the One?, and Bad Girls Club. Along with some non-quasi-celeb singles, they all arrive in Hawaii for what they think is just a standard dating show then, BAM! their exes (sometimes more than one!!) are there too. Seems kinda cruel, no?