Mariah Carey Sang Your Favorite Old Mariah Jam at the Billboard Awards

When Mariah Carey showed up to perform at the Billboard Music Awards, she was ready with her new single, "Infinity," but she was also kind enough to give us a throwback in the form of making it a medley with her '90s hit "Vision of Love." It's a big dose of music nostalgia, and the songbird proved she's still got it, hitting those classic Mariah Carey high notes.