Selena left her flat, toned belly in a black net top and tasselled trim on show, additionally revealing her matching bra underneath.
The sexy singer and a white puffball mini skirt paired the top that was bold (both by Louis Vuitton), emphasizing her long and slim legs.
Selena also sported black open-back ankle boots with high heels, and wore her long dark locks in a bedhead fashion that was sultry.
The Good For You hit-maker finished off her head-turning look with rosy cheeks, smoky eye make-up and pale pink lips.
Selena, who was performing through the star- studded presented with celebrity pal Michelle and planted a kiss on her cheek.
Selena additionally shared a cuddle on the red carpet with Fifty Shades Of Grey actress Dakota Johnson.
The 26-year-old decided on a sleek black pantsuit which left a trace of her lacy bra.