According to TMZ, someone in Miley's Los Angeles house -- not the singer -- called 911 early Saturday morning to report the intruder. When the cops showed up, Jason Louis Rivera, who was carrying a pair of scissors, was arrested for trespassing on her property.
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Rivera told police he went to Cyrus' house to see the singer, who was not home at the time of his visit.
LL and Miley aren't pals (that we know of), but after taking down a burglar in his home he should consider giving other celebs some self-defense lessons in case of another incident like this.