Demi Lovato: Of Britney and the BBC Switch...

Demi Lovato stands next to a Britney Spears wax figure at Madame Tussaud’s Wax Museum in London on Thursday afternoon (April 23).

The 16-year-old singer performed her single, “La La Land,” for a future segment to be featured on BBC2′s music show, Sound. Demi’s performance will be broadcast on Saturday, May 30 @ 1:30PM.

Demi also stepped out this afternoon (April 24) to do a little retail therapy, stopping at popular boutiques TopShop and Miss Selfridge.

10+ pics inside of Demi Lovato getting her shop on…