In her heartfelt acceptance speech, Gaga gave thanks to her Little Monsters, family, team and label — but it was her shout-out to Whitney Houston that struck an emotional chord. "When I wrote 'Born This Way,' I imagined she was singing it because I wasn't secure enough in myself to imagine I was a superstar," she told the crowd, acknowledging Houston's influence on her confidence and artistry. For more unforgettable GRAMMY Rewind moments, visit GRAMMY.com/videos.