Maasa Ishihara is a Japanese dancer who has supported performances by numerous A-list Western acts including Justin Bieber, Nicki Minaj, TLC, Ciara, Major Lazer and Becky G, as well as J-pop megastars Namie Amuro, SMAP and more. Her most recent engagement was performing with Ariana Grande at the Grammys in January, and she is currently rehearsing as one of the main dancers in Bieber's upcoming tour.