Lady GaGa's little sister is to create the costumes for a new off-Broadway show.

The 'Born This Way' singer's 19-year-old sibling Natali Germanotta - who is currently studying fashion design at legendary New York fashion school Parsons - is to design the outfits for 'Simon Says', which is about three strangers who meet at a seance.

Last year, Natali interned at Allison Parris helping backstage at its fall/winter 2010 show, where she impressed with her work ethic and style.

Allison told WWD: "Natali has an edgier sense of style like her sister. Initially when she went to the Grammys a few years ago, she wore one of our little lace trapeze dresses, but she styled it up with leather and hardware. She is so nice and so easy to work with. She is such a great girl."

Gaga, 25, recently revealed she feels famous because of her style.

She said: "I used to save up my money to buy Mugler vintage archive. I used to save up all my money. I had to have it. That's really what fashion is all about for me. I already felt like I had made it before I had made it.

"All of you made me feel like a star before I was. Thank you for believing In Me."