Credit: Amazon

Christian Grey's got nothin' on Captain Underpants.

The American Library Association just revealed its Top 10 List of Frequently Challenged Books in 2012. According to The Wrap, which posted the list, the ALA compiles this list every year as part of Banned Books Week, which "celebrates the freedom to read and the importance of the First Amendment."

Yes, Underpants and bondage for all!

Here are the top 10 "frequently challenged books":

1. "Captain Underpants" (series), by Dav Pilkey
2. "The Absolutely True Diary of a Part-Time Indian," by Sherman Alexie
3. "Thirteen Reasons Why," by Jay Asher
4. "Fifty Shades of Grey," by E. L. James
5. "And Tango Makes Three," by Justin Richardson and Peter Parnell
6. "The Kite Runner," by Khaled Hosseini
7. "Looking for Alaska," by John Green
8. "Scary Stories" (series), by Alvin Schwartz
9. "The Glass Castle," by Jeannette Walls
10. "Beloved," by Toni Morrison

Are you surprised to see books like The Kite Runner, The Glass Castle and Beloved on there?

Source: The Wrap