Celebrities' Hotel Aliases

Next time you're staying in the same hotel as Katy Perry and want to stalk her, don't call the front desk and ask for Katy--she goes by the alias Jerri Blank (Amy Sedaris's character from Strangers With Candy.) Here are a few others we now know, thanks to People magazine.Robin Thicke = Dirk DigglerKe$ha = Nut Roll, because, "that's what my mom call her fat after the holidays"Kelly Rowland =