Ray Tamarra/FilmMagic
Anna Kendrick was pitch perfect even at 13.
On Monday, the Huffington Post stumbled upon a video of the "Pitch Perfect" star singing "Life Upon the Wicked Stage" from "Show Boat" at a 1998 Carnegie Hall concert.
Kendrick, in pigtails and a pretty pink frock, sings in front of a troupe of scantily clad Kit-Kat girls, stars of a "Cabaret" revival, as part of "My Favorite Broadway: The Leading Ladies," which was hosted by Julie Andrews.
See also: 'Star Trek: The Next Generation' cast members to reunite on 'Big Bang Theory'
A year prior, Kendrick had earned a Tony Award nomination at the mere age of 12 for her first acting role in the Broadway musical "High Society." After starring in a number of theater productions in the late '90s and early '00s, she made her film debut in the 2003 musical "Camp."
Though the 27-year-old is known primarily for her nonsinging roles in films such as "Twilight," "Up in the Air," and "50/50," Kendrick did put her vocals to the test again in 2009's "The Marc Pease Experience," as a high school senior involved in musical theater.
Her latest role, as Beca in "Pitch Perfect," has the actress playing a college freshman in an all-girls a cappella group.
See also: 'Bachelor Canada' premiere: The 10 craziest quotes
Despite her extensive stage experience, Kendrick told ET Canada last month that singing for her supper onscreen wasn't that easy.
"To be the lead in this movie for, like, Universal Studios where I'm singing -- I was really nervous about it," she said. "It's just not an area that I'm really comfortable in."
You could have fooled us!