Lady Gaga sang Happy Birthday to a vagina

In The firm of the book, Gaga with Terry Richardson, a few days ago a Little Monster, asked Gaga, who sang happy birthday; in the firm, using mobile phones or cameras, so that this girl had the phone hidden in the vagina, approached her and suggested Gaga singing to her crotch. Gaga laughed, and agreed to it.

We leave you with the audio recorded this Little Monster: