Get an inside look at singer Jazmine Sullivan’s glam Grammys look. On Monday, Feb. 15, the “Let It Burn” nominee turned heads in a custom Michael Costello plunging black mermaid-silhouette gown with voluminous sleeves. She completed her ensemble with a sexy red lip, coal liner and a simple box clutch. Prior to sashaying down the red carpet, the 28-year-old invited Vogue behind the scenes, where they captured the beauty preparing for the prestigious ceremony. Check out the exclusive photos below.