Wednesday's Emma Myers & Evie Templeton Make Surprise Appearance at Lady Gaga's First London Show of 'Mayhem Ball'

Lady Gaga welcomed some special guests to the stage during her first London show on The Mayhem Ball Tour! The 39-year-old singer welcomed Wednesday actresses Emma Myers and Evie Templeton to the stage for a performance of The Dead Dance on Monday night (September 29) at The O2 in London, England. Gaga wrote the song []