Who knew that Justin Bieber served eight months in prison for siphoning gas? The pop star revealed some little-known facts about himself when he delivered the Top 10 list last night on 'The Late Show with David Letterman.'

The comedic bit included some of the "facts" that got left out of Bieber's documentary 'Never Say Never.' Among them: "Last week I accidentally waited in line for two hours for my own autograph" and "As hard as I've tried, I don't know how to not be adorable."

The singer showed off his sense of humor and endured Dave's ribbing. Letterman kept pointing out that Bieber is only a kid, and at one point he told the 17-year-old, "Quit throwing the paper on the lawn!"

When Paul Schaffer asked if Bieber's new fragrance 'Someday' is for ladies, Bieber corrected the bandleader, saying, "It's for women," leaving Paul and Dave confused about the difference. Take a look at the full Top 10 list below, which also includes a shocking revelation about Bieber's hair.

Watch Justin Bieber Present Little-Known Facts About Himself on Letterman