4. When Taylor Swift and Miley Cyrus did one for the teens.
Nashville darling Taylor Swift made her debut GRAMMY performance in 2009 alongside Miley Cyrus, who, at the time, was primarily known for her family friendly show on the Disney Channel.
The fresh-faced songbirds teamed up for an acoustic rendition of Swift's hit "Fifteen," singing sweetly about the anxieties and dreams that come along with adolescence.
Of course, both women went on to become superstars in their own right, but, for one night in 2009, they were the picture of youth and innocence for GRAMMY viewers.
Stream the 2017 GRAMMY Awards on-demand.
Photos: © Leon/Retna Ltd./Corbis (L), © Tim Mosenfelder/Corbis (R)