My wife watched this video and immediately sent me an e-mail and asked if this little girl was my daughter.  She she sings a song called "Let Me Poop" to the tune of "Let It Go" from the Disney Film "Frozen".  I thought it was hilarious because I find all things lavatorial very amusing.  If you are offended by poop humor, don't watch this video.  Otherwise, join me in laughing your tail off.