As a child, Larson starred in a sketch about a "Roadkill Easy Bake Oven" on the NBC talk show.
Larson had a regular role opposite Bob Saget and Kat Dennings on the WB sitcom Raising Dad, which was canceled after one season.
Larson played one of the snobby teen girls in the cult Jennifer Garner rom-com.
Well not baby, but here is a screenshot of 12-year-old Larson's first official website.
Larson tried to be a pop singer and she had moderate success; her 2005 single "She Said" reached No. 31 on the Billboard Hot 100 Singles Chart.
Larson toured with the fellow pop singer and supported him at his album release party at Planet Hollywood.
The aspiring pop star performed "Hope Has Wings," a song she sang in Barbie and the Magic of Pegasus 3-D, atop a Barbie float.
The actress starred as Kate Gregson on Showtime's United States of Tara.
Real life meets fiction as former aspiring singer Larson rocks out as Envy Adams in the cult film.
Larson lands the recurring role of Rachel on the NBC sitcom.
Larson stars with Amy Schumer in her hit comedy movie.
Larson plays her most harrowing role, a rape victim and mother in captivity.
Larson wins her first Oscar, for her performance in Room.
Larson starred with Tom Hiddleston, Samuel L. Jackson, John C. Reilly and John Goodman in this blockbuster King Kong adaptation.
Larson suits up as the title superhero in Captain Marvel, the first film to feature a female Marvel superhero as the main character.