Katy Perry is radiant at jewelry event

By Daily Mail Reporter

PUBLISHED: 22:54 EST, 5 September 2012 | UPDATED: 22:55 EST, 5 September 2012

She was spotted with new flame John Mayer just last night.

And perhaps that was the reason Katy Perry had so much to smile about as she stepped out in Beverly Hills this evening.

The pop star went for rocker chic in a green and black printed frock, which she paired with a studded leather jacket and rugged boots.

She can't stop smiling: Katy Perry flashed a grin as she attended a viewing party for jewelry designer J.Molinari in Beverly Hills on Wednesday

She can't stop smiling: Katy Perry flashed a grin as she attended a viewing party for jewelry designer J.Molinari in Beverly Hills on Wednesday

The Fireworks hitmaker was on hand at the Beverly Wilshire hotel for a viewing party for jewelry designer J.Molinari's Addicted collection for Jason of Beverly Hills.

The singer side-swept her raven bob across her eye and flashed a wide smile as she walked the red carpet.

Katy accessorised with a long rosary-style necklace, a black studded wrap bracelet, vintage-inspired ring and a thin bleck belt that nipped her frock in at the waist.

The 27-year-old was far from the camera-shy star fans saw as she left a Los Angeles restaurant with Mayer last night - putting to rest any rumours that their blossoming romance was on the rocks.

Beaming: The 27-year-old singer wore a patterned green and black frock to the event

Beaming: The 27-year-old singer wore a patterned green ! and blac k frock to the event

Rocker chic: She paired the ensemble with a studded leather jacket for a bit of edge

Rocker chic: She paired the ensemble with a studded leather jacket for a bit of edge

On August 23, reports surfaced saying Mayer, 34, had broken up with Katy before their fledgling romance even really got off the ground.

The pair have been spending quite a lot of time together recently and yesterday saw them enjoy a romantic meal for two at the Little Door restaurant.

Katy had dressed rather casually for their night out, wearing a pair of grey cropped trousers, a green floral top and matching wedges.

The Teenage Dream singer seemed keen on heading to Mayer's vehicle as soon as possible but although they didn't want to leave the eatery next to one another, Mayer couldn't help but hover to ensure his girlfriend was okay as she exited.

Someone's camera shy: Katy kept a low profile as she left a Los Angeles restaurant with John Mayer last night

Someone's camera shy: Katy kept a low profile as she left a Los Angeles restaurant with John Mayer last night

The two musicians were earlier spotted looking affectionate at electronic music festival FYF Fest on Saturday night at Los Angeles State Historic Park, according to Perez Hilton.

Close friends of Firework singer Perry were said to be worried about her falling for the charms of bad boy Mayer so shortly after her failed marriage to Russell Brand.

She apparently took a bit of persuading, but Mayer - who has dated the likes of Jessica Simpson and Jennifer Aniston in the past - eventually won her over.