Lady Gaga may have walked the Grammys red carpet solo [1] on Sunday, but you better believe her fiancé Christian Carino [2] was there to support her on her big night. Following her chill-inducing performance [3] of "Joanne (Where Do You Think You're Goin'?)," Mother Monster was photographed backstage getting cosy with the talent agent, marking the couple's first official appearance since they got engaged last Summer [4].