The Come and Get It singer, who is nominated alongside her ex-boyfriend Justin Bieber for the night's Artist of the Year honour, stunned reporters when she showed up the Los Angeles red carpet event in a figure-hugging red gown.

Looking tanned, happy and healthy as she posed for event photographers, there were no signs Selena had been stressed and ill.

She reportedly checked in to rehab to seek help for autoimmune disease lupus, with which she was diagnosed in 2014.

In late August (16) she announced she was taking an indefinite break from her world tour in order to focus on getting well.

She has been laying low ever since, but multiple sources told Us Weekly at the end of the summer (16) the singer had been spending time at a private treatment facility just outside Nashville, Tennessee, where she is attempting to conquer the anxiety, panic attacks, and depression she has been suffering as a result of her lupus struggle.

Gomez previously cut short a 2014 tour of Australia and checked in to the Dawn at The Meadows facility in Arizona to receive professional care and undergo chemotherapy.

She didn't reveal her secret health battle until October, 2015, when she released her album Revival.