The Victoria's Secret Fashion Show [1] doesn't air until Monday night, but the masterminds behind the sexy shindig have given us a sneak peek at not only the Angels' getting-ready process but also at Lady Gaga [2]'s performance of "Million Reasons." [3] Gaga, who joins The Weeknd [4] and Bruno Mars as the annual show's musical talent, sings her emotional hit along with the lip-syncing help of Victoria's Secret models Alessandra Ambrosio, Jasmine Tookes, and more backstage. There are also quite a few shots of the models strutting their stuff in preparation for walking the runway, so watch it above!
