Demi Lovato looked sensational as she appeared on the Tonight Show Starring Jimmy Fallon on Friday evening.

The singer arrived on the set in a striking, sexy ensemble before taking to the stage to perform her new single Confident.

The superstar singer was clearly going without a bra on in her tiny little velvet-textured tuxedo dress.

The figure-hugging garment was cut down seriously low, the plunging faux-blazer neckline almost tickling her navel, allowing her to show off much of her ample assets.

It also included a tiny thigh-skimming skirt, her legs on full show and elongated with a pair of towering stiletto heels.

The stunning former Disney star’s raven bob was styled into a typical, clean straight ‘do, and Demi finished off her evening TV appearance aesthetic with sultry black smokey eyes and fluttering lashes.

Happy Halloween! Fallon looked thrilled as he showed off a specially-carved pumpkin of himself and ‘BFFFF’ Demi

Demi looked in fantastic spirits as she chatted to the host – who showed her a specially-carved pumpkin with both of their faces on – before she hit the stage to sing her heart out.

It seems all of her tireless efforts to improve her self-esteem over the past year have worked, as she has certainly never looked better, or exuded so much poise and assurance.

She is currently in the midst of promoting her new single Confident, from her fifth studio album of the same name, which was inspired by her struggles with an eating disorder and her body issues.

Meanwhile, earlier in the day, kind-hearted Demi took the time out from her busy schedule to spend time with some of her fans.

The girlfriend of Wilmer Valderrama was seen stopping to sign an autograph in New York City as she exited her residence.