Taylor Swift is quite popular! Take a look at some of the star's celebrity best friends -- including Demi Lovato, Ed Sheeran, Lily Aldridge, and more
The British singer joined Swift on stage during her Red tour in London in February 2014. That same night, the "Love Story" entertainer posted a polaroid of the duo backstage. "See you next time! PS: short hair, don't care. (!!!)" she tweeted.