Jojo Siwa is turning 17 with a bang. Ahead of her milestone birthday, the famous YouTube star decided to change things up and ditch her signature ponytail, which she documented on TikTok on Monday. Standing in front of the mirror and donning her go-to ponytail, hair bow and a bedazzled jacket as the song "Wipe It Down" played, Siwa can be seen giving her vanity a good clean with some Windex and a rag.