Hayley Kiyoko

Hayley Kiyoko Alcroft ( ; born April 3, 1991), known professionally as Hayley Kiyoko, is a Japanese-American actress, singer and songwriter. She is best known for playing Velma Dinkley in Scooby-Doo The Mystery Begins and Curse of the Lake Monster, as well as Stella Yamada in the Disney Channel film Lemonade Mouth. In February 2015 she released her debut solo EP.