CEBU, Philippines (AP) - Behind thick stone walls topped by electrified razor wire, one of cyberspace's most unlikely hits is already warming up as the rest of Cebu stirs from sleep.

Pockets of inmates stretch and practice their latest moves. Then the morning workout gets under way in earnest in the exercise yard of the Cebu Provincial Detention and Rehabilitation Center.

In their identical orange prison uniforms, up to 1,500 march and clap in unison as they perform precision dance routines with the Village People's "In the Navy" and "YMCA" pounding from six well-worn black speakers.