Celebrity yearbook photos

Lady Gaga, also known as Stefani Germanotta, is shown with her father during a dance her senior year at Convent of the Sacred Heart School in New York in 2004. This is one of several images of celebrities shown before they became famous included in Ancestry.com's U.S. School Yearbook Collection.

Keep clicking to see more stars in their yearbook photos.

Pictures: Lady Gaga

Lady Gaga attends the MTV Video Music Aid Japan Press Conference on June 23, 2011 in Tokyo.

Pictures: Lady Gaga

Actor Ryan Reynolds, top left, is shown during his junior year at Kitsilano Secondary School in Vancouver, British Columbia, in 1993.

Pictures: Ryan Reynolds

Actor Ryan Reynolds arrives at the world premiere of "The Change-Up" at the Village Theatre in Los Angeles, California on Aug. 1, 2011.

Actress Scarlett Johansson is shown decorating a Christmas tree during her senior year at New York's Professional Childrens School in 2002.

Pictures: Scarlett Johansson

Actress Scarlett Johansson is shown during her senior year at New York's Professional Childrens School in 2002.

Pictures: Scarlett Johansson

Scarlett Johansson arrives at the Spike TV Guys Choice Awards on Saturday, June 4, 2011, in Culver City, Calif.

Pictures: Scarlett Johansson

Actor Bradley Cooper is shown during chemistry class in his junior year at Germantown Academy in Fort Washington, Pa., in 1992.

Actor Bradley Cooper at the Los Angeles premiere of "The Hangover" at Grauman's Chinese Theatre on June 2, 2009, in Hollywood, Calif.