Source: Wikipedia
The singer (real name Stefani Germanotta) ended up over a girl's knee in St. Jerome's night club in New York April 2009. She seemed to be enjoying it. The girl was supposed to be Lady Starlight.
![Image](http://img4.imagetitan.com/img4/small/27/27_ladygagaclub.jpg)
Also she said this in an interview with femalefirst.co.uk:
I just have this weakness for leather, long hair and a dark side. Maybe that's not such a good thing.
This showed in these pictures for Vogue Hommes Japan (photographer Nobuyoshi Araki):
![Image](http://img2.imagetitan.com/img2/small/29/29_lady-gaga-bondage.jpg)
![Image](http://img2.imagetitan.com/img2/small/29/29_lady-gaga-in-bondage.jpg)
![Image](http://img2.imagetitan.com/img2/small/29/29_lady-gaga-nude-bondage.jpg)
![Image](http://img2.imagetitan.com/img2/small/29/29_lady-gaga-rope-bondage.jpg)
Another kinky photoshoot:
![Image](http://img4.imagetitan.com/img4/small/27/27_beautiful-lady-gaga-in-bondage-chains.jpg)
In Mai 2011 she visited fashion designer Jean-Paul Gaultier in Paris - part of a documentary for French television. The visit included a photoshoot which showed Gaultier (as a priest) spanking Gaga (as a nun).
![Image](http://img2.imagetitan.com/img2/small/46/46_newsshoes_may19_jpg_gaga.jpg)
![Image](http://img4.imagetitan.com/img4/small/27/27_gaga_rkelly.jpg)
R Kelly I guess?