What Is Love Love" was directed by German music video director Volker Hannwacker. It features Haddaway performing in an old castle, surrounded by vampire-like dominatrices. "What is Love" experienced a revival as the song from the "Saturday Night Live" "Roxbury Guys" sketches (later expanded into a movie called "A Night at the Roxbury"), where two brothers (played by Chris Kattan and Will Ferrell) frequently went to dance clubs with a third person (including actors such as Sylvester Stallone and Jim Carrey), credited as "Barhop". It was also used in the 2013 video game "Saints Row IV" and included as one of the tracks
One-third hypothesis theory. One-third hypothesis The one-third hypothesis (OTH) is a sociodynamic idea—advanced by Hugo O. Engelmann—that asserts that a group's prominence increases as it approaches one-third of the population and diminishes when it exceeds or falls below one-third of the population. As the one-third hypothesis was stated originally by Hugo O. Engelmann in a letter to the "American Sociologist" in 1967: "...we would expect that the most persistent subgroups in any group would be those which approximate one-third or, by similar reasoning, a multiple of [i.e., a power of] one-third of the total group. Being the most persistent, these groups also