Elvis the Pelvis

Elvis the pelvis was known to shimmy and shake, but he could also wiggle and waggle. Some would say he was all shook up, but boy could he move those blue suede shoes. Each day he would head to the Heartbreak Hotel to avoid being lonesome that night. Following a 24 hour burning love, he ended up in a jailhouse rock, where he noticed a deep pain arising from the distal attachment of his sacrotuberous ligament.

Question: Can you point to the site of Elvis’  pain in the image?