Cell phones are a hot commodity in America's prisons these days. Even Charles Manson was caught with one under his mattress in California's Corcoran State Prison. He's been texting people and even sang a song on one friend's voicemail. Listen!

According to the LAT, Manson was caught with an LG flip phone after Inside Edition aired the following recording, which Manson left on a friend's voicemail: "I've seen the world spinning 'round on fire…I've danced and sang in the devils choir…"

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