Lady Gaga pays tribute to Fashion Photographers Terry Richardson Late Mom.

Lady Gaga shaved her head not for new looks, not for fashion but in honor of her friend Terry Richardson late mom. Fashion and celebrity photographer Terry Richardson lost his mother Tuesday and to honor her life, the "Born this Way" singer shaved the back of her head in a triangular patch in tribute. 

"I did it for u Terry. I'm sorry about ure mommy. She has princess die, but were all princess high,"  Gaga twitted. Princess die was in reference to Gaga's song, a tribute to late Princess Diana.

Terry Richardson took photos of his late mother before her death in her hospital ICU bed and posted on his blog "R.I.P. Annie Lomax, My Mom 1938 -2012."  Richardson just recently posted photos with Lady Gaga during her music tour. 

Terry and Lady Gaga have been good friends and collaborated in their recent 2011 book "LADY GAGA X TERRY RICHARDSON."