We've previously shared Taylor Swift's pictures from her best friends wedding where she and the bride wore a dress designed by Reem Acra.
Taylor gave a toast in Britany's wedding that made the crowd tear up, she talked about their childhood memories and how Britany stayed with her through her journey.
She said" "My favorite accomplishment of my entire life is that everything in my life has changed except for me and Britany."
The video was uploaded on Saturday to Vimeo and it features all the speeches and toasts given by the couple's friends and family.
Taylor Swift was Britnay's made of honor and she shared pictures of her and the bride on Instagram two weeks ago.