Katy Perry has saved her left boob for Josh Groban. She loves him so much that she's spelled his name wrong. She probably got too excited when his song came out, and asked the tattoo artist to just do an "I" instead of an "O" so that she could quickly rush to the radio and do dirty stuff to it.

Luckily the tattoo is fake, as she probably couldn't sit still long enough for a real tattoo to be inked on her.

[via Buzzfeed]