Demi Lovato shows off her toned curves in sexy PVC bralet and tight skirt as she cosies up to boyfriend Wilmer Valderrama after the AMAs

She put on a showstopping performance at the American Music Awards on Sunday evening.

But a few hours later, Demi Lovato only had eyes for the leading man in her life, boyfriend Wilmer Valderrama.

The smitten couple, who have been in a relationship since 2010, appeared to be in fantastic spirits as they enjoyed a romantic dinner date at Craig's Restaurant in West Hollywood.

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Date night: Demi Lovato and boyfriend Wilmer Valderrama enjoyed a romantic dinner  at Craig's Restaurant in West Hollywood, on Sunday

Date night: Demi Lovato and boyfriend Wilmer Valderrama enjoyed a romantic dinner at Craig's Restaurant in West Hollywood, on Sunday

Turning heads as she passed by, Demi oozed heaps of sex appeal in a bold PVC bralet and tight mini-skirt, which featured a gold zip running down it.

The US singer, 23, flashed her toned figure in the racy ensemble, while partially staying covered up in a textured jacket.

With her raven tresses left loose in tousled waves, the star plumped up her pout with a matted slick of rich red lipstick and emphasised her gorgeous striking eyes with lashings of mascara.

Turning heads: The singer oozed heaps of sex appeal in a bold PVC bralet and tight mini-skirt, which featured a gold zip running down it

Turning heads: The singer oozed heaps of sex appeal in a bold PVC bralet and tight mini-skirt, which featured a gold zip running down it

Daring to bare: The 23-year-old flashed her toned figure in the racy ensemble, while partially staying covered up in a textured jacket

Daring to bare: The 23-year-old flashed her toned figure in the racy ensemble, while partially staying covered up in a textured jacket

Beaming: the smitten couple appeared to be in relaxed spirits as they made their way through the crowds

Beaming: the smitten couple appeared to be in relaxed spirits as they made their way through the crowds

Meanwhile, her handsome beau cut a stylish figure in dark tailored two-piece suit, styled further with a black shirt and shiny leather shoes.

Ahead of the night’s proceedings, Wilmer took to Twitter to post: ‘Excited to see so many friends tonight & my lady completely destroy the stage.... Humbly speaking #AMAs.’

Earlier in the evening, Demi opted for vintage glamour in a stunning black and gold gown as she hit the red carpet, channelling old Hollywood with her hair in 1920s waves.

A beauty: With her raven tresses left loose in tousled waves, the star plumped up her pout with a matted slick of rich red lipstick and emphasised her gorgeous striking eyes with lashings of mascara

A beauty: With her raven tresses left loose in tousled waves, the star plumped up her pout with a matted slick of rich red lipstick and emphasised her gorgeous striking eyes with lashings of mascara

Meanwhile... her handsome beau cut a stylish figure in dark tailored two-piece suit, styled further with a black shirt and shiny leather shoes

Meanwhile... her handsome beau cut a stylish figure in dark tailored two-piece suit, styled further with a black shirt and shiny leather shoes

Proud beau: Ahead of the night’s proceedings, Wilmer took to Twitter to post, ‘Excited to see so many friends tonight & my lady completely destroy the stage.... Humbly speaking #AMAs’

Proud beau: Ahead of the night’s proceedings, Wilmer took to Twitter to post, ‘Excited to see so many friends tonight & my lady completely destroy the stage.... Humbly speaking #AMAs’

The songstress teamed up with Alanis Morissette to perform the 1995 hit You Oughta Know on-stage. 

Despite the fact Demi was only three years old when the 41-year-old's iconic Jagged Little Pill album hit the charts in the 1990s, she proved she had well and truly caught up.

The crowd was whipped into a frenzy as the two talented musicians gave an energetic and stirring rendition of the singer's 1995 hit.

Demi also made quite an impact on the audience with her impeccable vocals during a performance of new single Confident.

Star pal: Demi also made an appearance at Jennifer Lopez's American Music Awards after-party in LA

Star pal: Demi also made an appearance at Jennifer Lopez's American Music Awards after-party in LA

Happy to see you: The stars looked delighted as they stopped to chat

Happy to see you: The stars looked delighted as they stopped to chat

All good friends: They were also joined by Wilmer, Casper Smart and Nick Jonas

All good friends: They were also joined by Wilmer, Casper Smart and Nick Jonas

Close pals? Demi and Wilmer were also joined by Joe Jonas during the night out

Close pals? Demi and Wilmer were also joined by Joe Jonas during the night out

Wow factor: On the red carpet, Demi opted for vintage glamour in a stunning black and gold gown, channelling old Hollywood with her hair in 1920s waves and sporting a deep berry lipstick

Wow factor: On the red carpet, Demi opted for vintage glamour in a stunning black and gold gown, channelling old Hollywood with her hair in 1920s waves and sporting a deep berry lipstick

Vixen: Demi  looked incredible as she flaunted her stunning curves up on the stage at the American Music Awards at the Microsoft Theater

Vixen: Demi looked incredible as she flaunted her stunning curves up on the stage at the American Music Awards at the Microsoft Theater

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