A poodle is on top of the dog show ... before showtime to get her ring ready. She "let's her hair down" at home. The perfectly coiffed black poufs for a big show turn into brushed out pigtails ...

Siba the standard poodle has won "Best in Show" at the Westminster ... Pennsylvania — sleek, with shiny black hair and a shaved backside. "I always say, don't let the haircut fool you.