On Friday, May 13th, Team Umizoomi is all about mermaids! The Nickelodeon toon will debut a brand new special called The Legend of the Blue Mermaid at 11:30am on the cartoon channel, with a whole new adventure for Team Umizoomi. Jordin Sparks makers her appearance, lending her voice to the blue mermaid. Unfortunately for her, she’s trapped in a squid’s sand castle. Fortunately for us, she brings us a song written just for the special, Song of the Blue Mermaid.