Republican presidential candidate Gov. Rick Perry caused a stir the other night at a debate when he couldn't remember the third government department he would close down.

You knew talk shows like 'The Late Show with David Letterman' were going to say something about it. But it was actually Perry himself who came on to the show last night to give the 'Top Ten Rick Perry Excuses' list.

Of course, he has trouble remembering one of entries on the list, and another entry connects him to... Justin Bieber? Check out the list below.

[via Buzzfeed and The Late Show]