A video showing Jodi Arias singing, laughing, talking to herself and doing a 20-second headstand minutes before she's charged with murdering her boyfriend has today been released.

The bizarre behavior was captured on June 15, 2008, in a police interrogation room where just 15 minutes earlier she was sobbing to detectives about her lover's death, which at that point she denied having any part in.

But once she has the room to herself, her mood changes dramatically. She is seen on the tape chatting to herself, singing aloud and fishing through a trash can.