Lady Gaga bares breast in picture with Terry Richardson

Terry Richardson, the photographer who teamed up with Kate Upton for the model's "Cat Daddy" dancing video, is making headlines once again for hanging out with a woman whose breasts are hanging out -- or just one breast in this case. Lady Gaga tweeted a picture of herself and Richardson Thursday (May 10) night, following her performance in Tokyo.

In the pic, Gaga is donning big glasses, a sneer and what appears to be electrical tape over her left nipple -- ouch!

"Yes Tokyo! Tonight was the first BTWBall that I didn't puke during show. (yes its that hard) xoxoxxxo Love, gaga+terry," Gaga tweeted along with the photo.  

Gaga and Richardson recently collaborated on the photo book "Lady Gaga X Terry Richardson," featuring pictures of the "Born This Way" singer on tour and in her personal life.

More scandalous: Gaga's breast pic or the Time magazine breast-feeding cover?