They recently spent some quality time together relaxing on holiday in Miami.
But Nick Jonas and girlfriend Olivia Culpo put on a dazzling display as they attended the opening red carpet party for TV and entertainment market event MIPCOM 2014 in Cannes, South of France, on Monday.
All eyes were on the stunning 22-year-old model, a former Miss USA and Miss Universe title holder, who showed off her amazing figure in a revealing yet classy dress on the red carpet.

She wore a vibrant scarlet floor-length vintage prom dress with a sexy split up the front all the way to the top of her thighs and thin straps that showed off her décolletage desirable.
The ruched plunging neckline was so deep it nearly hit the top of the slit on the skirt on her left leg, but - ever professional - she managed to avoid a wardrobe malfunction.
Nipped in at the waist, just something clean dress accentuated her willowy frame and slimline curves.
She wore a little white and gold clutch bag, and completed the look with delicate metallic sandals.

Her normally flowing brunette hair was pulled back into an elegant up-do, friendly, giving her a total glam look that would undoubtedly be hosting the Academy Awards, and her make-up was minimal with only her doe-like eyes accentuated.
Meanwhile, singer Nick, who is also 22, looked dapper in a fitted navy suit, white shirt and patterned tie.
Last week was the lovely couple spotted enjoying themselves at a hotel in Miami, as Olivia showed off her slim figure in a string bikini.