Mark Foster

Foster the People's hit song "Pumped Up Kicks" -- whose lyrics depict a violent school shooting -- won't be getting ANY airplay whatsoever in the wake of the Newtown massacre ... at least on L.A.'s #1 hit music station. Sources at KIIS-FM tell TMZ, the station has completely pulled "Pumped Up…

Prince DOES NOT mess around when it comes to cell phones at his private shows ... and had the lead singer of Foster the People KICKED OUT last night when he violated the rule. TMZ was shooting footage when Mark Foster -- the guy who sings the annoyingly overplayed "Pumped Up Kicks" song -- was…