You'd better believe it! While the original movie's Maria, Natalie Wood, was dubbed by Marni Nixon in the 1961 film, Rachel Zegler sings all of her own songs as the new Maria. A lifelong theatre kid, Zegler famously auditioned for Maria when a friend sent her a link to an open casting call. She submitted a self-tape singing "I Feel Pretty," and the rest, as she told Town and Country, is history!