David Spade initiated a decades-long feud with Eddie Murphy with a seemingly innocuous joke about the former cast member being a "falling star." Spade later revealed that Murphy screamed at him over the phone and refused to return to "SNL" for years after.
Elvis Costello got himself banned from "SNL" with a 1977 performance when he stopped a performance of "Less Than Zero" to launch into "Radio, Radio," a song critical of the commercialization of broadcasts.
"Saturday Night Live" has been repeatedly criticized for a lack of diversity among its cast. Pressure on the show to diversify culminated in the casting of comedian Sasheer Zamata, a black woman, for Season 39.
"SNL" has been accused of plagiarism several times. A recent sketch about three Tina Turner impersonators, featuring Sarah Silverman, Sasheer Zamata and Cecily Strong, was accused of being taken from Los Angeles comedy group The Groundlings.