(Actress) most recently starred on Broadway as principal Rosaline Mullins in School of Rock. Sierra is widely known for her critically acclaimed performance as Christine Daee in Broadway’s The Phantom of the Opera. In February 2016, she appeared with Ramin Karimloo in the Manhattan Concert Productions staging of The Secret Garden in which she performed the role of Lily. Other Broadway credits include Ariel in The Little Mermaid (Broadway.com Audience Award, Drama League nomination, Drama Desk nomination), Rebecca Steinberg in It Shoulda Been You (Broadway.com Audience Award), and Sharon Graham in Master Class. West End credits include Christine Daee in Love Never Dies (Laurence Olivier Award nomination), and Fantine in Les Misérables.