Singer Lady Gaga has shaved the back of her head to pay tribute to photographer friend Terry Richardson's mother, who died Sep 11. The singer known for her eccentric style, chopped off her long tresses and shaved the back of head. She posted the picture on her website Little Monster and dedicated it to Richardson's mother Annie Lomax, reports contactmusic.com.

"I did it for you Terry. I'm sorry about your mummy. She has Princess Die (late British royal, Diana, Princess of Wales), but we are all princess high," she wrote on her website.

Richardson recently collaborated with Gaga on a recent picture book.