Mark Salling
"Glee" star Mark Salling ran into some legal trouble in 2015 when the former singer and actor was accused of rape and child pornography. Despite his high-profile career and promising talent, he was scrubbed from fame with these charges. However, he committed suicide in 2018 because of the ordeal.
Sinead O'Connor
Despite her famous songs like "Nothing Compares 2 U," O'Connor is known for being one of music's most outspoken performers, and it's gotten her in trouble more than a few times. During a 1992 SNL performance, she changed the lyrics to Bob Marley's "War" with lines that detailed the rampant child abuse cases occurring at the hands of the Catholic Church. She also ripped up a photo of Pope John Paul II live on camera.