Aguilera celebrates Macy's birthday

Christina Aguilera has posed for a series of photos marking department store Macy's 150th birthday.

Other celebrities taking part in the commemorative snaps include Tommy Hilfiger, Jessica Simpson, Martha Stewart and Calvin Klein.

Aguilera's pictures, which were taken by Rolling Stones photographer Mark Seliger, feature the singer in a large white and purple dress in front of a backdrop of blooms.

The images will feature in "larger-than-life "displays across Macy’s stores in America, according to Access Hollywood.