Thanks to Shannon for sending this out.
According to YouTube: 1,500 plus CPDRC inmates of the Cebu Provincial Detention and Rehabilitation Center, Cebu, Philippines at practice! This is not the final routine, and definitely not a punishment! just a teaser.
And even scarier, click on Byron F Garcia and you will see several different routines by the prisoners to songs such as The Hustle, Canon in D, and I Will Follow Him. This is definitely an unexpected take on prisoner art!