Lady Gaga is developing a range of limited edition gifts for Barneys.

The department store have teamed with the eccentric singer for a multifaceted seasonal campaign based around 'Gaga's Workshop' - a shopping experience which will see the fifth floor men's department transformed into a special area based on the star's idea of Santa's Workshop and filled with items created by Gaga and her friend Nicola Formichetti.

The space will be transformed by Brazilian-born installation artist Eli Sudbrack of Assume Vivid Astro Focus.

Barneys' chief executive officer Mark Lee told WWD: "Holiday is about joy, sharing and inclusiveness, and to me, Gaga really represents all of that.

"Her platform is so much about positivity, individuality and universality in a very today way."

Barneys worked closely with Gaga and Formichetti to design exclusive, limited edition small gift items - from candies and toys to apparel, accessories, candles and cosmetics. There also are Gaga-curated items like books and CDs. Among the limited edition items will be jewellery made entirely of rock candy; lipsticks in special Gaga red or pink hues; lip-shaped, hand-painted dark chocolate, and a Rubik's Cube exclusive to this collaboration.

"There are a lot of things for fans of all ages, for kids and kids at heart. I think our existing and new customers will find fun things to share and give as gifts in a lighthearted and not so serious way."

The workshop will open in November until January 2, with the store's Madison Avenue windows also decorated to keep in with the Gaga's Workshop theme.

As part of the collaboration, 25 per cent of sales will be donated to a charity of Gaga's choice.