Demi Lovato [1] just made your geometric dreams come true with the black-and-white outfit she wore in London on Nov. 9. The singer, who recently announced her tour with Nick Jonas [2], was in town for BBC Radio 1's Teen Awards (Nick was also there [3]) and, of course, brought her fashion A game across the pond with her.

Demi wore a striped midi dress, a structured black jacket, and black pumps and upped the chic factor by accessorizing the look with a fun and playful heart-shaped Chanel bag and studded sunglasses. Keep scrolling to see more pictures of her glam outfit, and then check out her most stylish looks of the year [4].