Mirusia Louwerse (born March 29, 1985) is an Australian soprano who has performed with The Wiggles on several occasions. Performing songs including "Twinkle, Twinkle, Little Star" on the Wiggle Around Australia Tour, "Curoo Curoo" on both the Party Time Big Show Tour and Carols in the Domain in 2019, and "Poesje Mauw" on The Wiggles YouTube Channel.