(n) An "African Child" is an action by a respected person/group that made them lost credibility because said action was either politically motivated or preachy and not within that person/group's normal behaviour. Politicians and Journalists, for example, cannot do an African Child because political motivation is within their normal behaviour. African Childs are common among musicians, but not among Actors/Actresses. An African Child is akin to "selling out" or "finding religion" as downfalls of artists or celebrities.
American Idiot sucked, man, but it wasn't an African Child until they did a fucking musical.