Los Angeles: Singer Katy Perry says she is dealing with Obsessive Compulsive Disorder (OCD), especially when it comes to arranging everything in alphabetical order and maintaining hygiene.
"I am so OCD. I always want to put things in alphabetical order. I am also a little Howard Hughes about germs," femalefirst.co.uk quoted Perry as saying.
Perry, 28, is currently dating musician John Mayer.