DEMI Lovato stunned in a plunging velvet mini dress as she left Nobu in Malibu hand-in-hand with fiancé Max Ehrich last night.

The singer looked sensational in the blush-colored dress, which featured ruching detail around the skirt, for their romantic dinner.

The singer’s ensemble was sure to turn heads with its plunging neckline that highlighted her cleavage.

The newly-engaged star complemented her look with a pair crystal-encrusted sandals and handbag.

She worked her brown hair into a sleek chignon at the nape of her neck and sported a protective face mask when leaving the venue to their waiting car.

Following his other half’s style lead, Max, 29, opted for a double denim look with a jean jacket and lightwash jeans.

The actor also sported a face mask when leaving the upscale eatery.

Last week, Demi shared intimate behind-the-scenes photos of the moment Max proposed, declaring her engagement as the “best night of my life”.

The snaps show Max on bended knee before he stands up to embrace the singer on a beach in Malibu, California.

Demi captioned the sweet pictures: “Best night of my life… still soaking it all up.. I love you baby @maxehrich 💍”.

Meanwhile, Max shared the same snaps on his own page, revealing that “Crash Into Me” by Dave Matthews Band was playing in the background during the proposal.

He wrote: “Still floating ☁️ love you more each and every second @ddlovato.”

The couple announced their engagement on July 22 after just five months of dating.

Demi wrote: “When I was a little girl, my birth dad always called me his ‘little partner’ – something that might’ve sounded strange without his southern cowboy like accent.

“To me it made perfect sense. And today that word makes perfect sense again but today I’m officially going to be someone else’s partner.”

“@maxehrich – I knew I loved you the moment I met you.

“It was something I can’t describe to anyone who hasn’t experienced it firsthand but luckily you did too.. I’ve never felt so unconditionally loved by someone in my life (other than my parents) flaws and all.”

Former Disney star Demi went on: “You never pressure me to be anything other than myself. And you make me want to be the best version of myself.

“I’m honored to accept your hand in marriage. I love you more than a caption could express but I’m ecstatic to start a family and life with you.

“I love you forever my baby. My partner. Here’s to our future!!!!”