Apparently, the hacked Twitter account has more or less replaced the hacked PDA as the new go to for celebrity pranking. Case in point: Katy Perry's Twitter account got hacked by her producer, Dr. Luke, who left dirty Tweets on her timeline. And by "hacked", I mean she left it wide open on her computer for all to see and he just typed random shit on it.

The I Kissed A Girl hitmaker was stunned when she discovered Lukasz Gottwald, also known as Dr. Luke, logged onto her page and wrote obscene comments for all her friends and fans to see. One post read, "Is it normal to have the recurrent rash with blisters on my vagina???" while another said, "Oops I cr**ped my pants! It's messy. What should I do?"
 

After realising she'd been pranked, Perry blasted the songwriter, writing, "Hey stop! I leave my computer for one second. Stop hacking my Twitter." (Source)

No offense to Katy, but she kinda had it coming. Leaving your Twitter account open when people are around is like falling asleep at a frat party next to a box of markers. It's like my mother always said, "If you're fucking stupid enough to slip yourself your own roofie, don't come crying to me when you get fucked."