Source changes for image #577686

Image		Source	Action	Timestamp
577686		https://www.youtube.com/watch?v=-d4Rq-_6IGM	Removed	12 years ago	Background Pony #EFBF
577686		https://www.youtube.com/watch?v=zLOkUouF3XE	Added	10 years ago	Psyga315