Selena Gomez [1] showed up to the 2016 Grammy Awards [2], held at the Staples Center in Los Angeles, in head-to-toe sparkles and with best friend Taylor Swift [3] by her side. The "Hands to Myself" singer, who was a presenter at the ceremony and changed into a red Cushnie et Ochs gown [4] to go on stage, walked the red carpet in a formfitting, blue sequined Calvin Klein gown with a short train and superlow back, featuring cutouts perfectly placed to show off her toned abs. The star went all-out sexy, pairing her eye-catching dress with diamond hoops and voluminous curls. How will she top this look at the 2017 ceremony? Ahead, see more photos of Selena on the red carpet [5] with her BFF date.