Karl Stefanovic steps out looking trim with wife Jasmine Yarbrough at Sydney’s Gold Dinner

He immersed himself in a gruelling workout with Gold Logie-nominated actor Rodger Corser on Wednesday.

And Karl Stefanovic’s fitness blitz seems to have done the trick, as he stepped out looking noticeably trim at the Gold Dinner in Sydney with his glamorous wife Jasmine on Thursday.

The former Today host, 44, looked dashing in a black tuxedo, but it was the Mara & Mine shoe designer who stole the show in a dazzling navy blue dress.

Karl Stefanovic’s fitness blitz seems to have done the trick, as he stepped out looking noticeably trim at the Gold Dinner in Sydney with his glamorous wife Jasmine on Thursday 

Jasmine, 35, stunned in the unique gown as she stood beside her husband at the exclusive event at Fox Studios at Sydney’s Moore Park.

The elegant ruched shoulder join was her outfit’s most striking feature, and the high cut of the dress allowed the blonde beauty to show a glimpse of her slender legs.

Jasmine added to her look with a pair of golden teardrop earrings while catching the eyes of onlookers with a double-styled hairdo.

Having a whale of a time! The couple, who tied the knot in December, appeared to be in great spirits at the event

Having a whale of a time! The couple, who tied the knot in December, appeared to be in great spirits at the event 

Ready for her close-up: Jasmine framed her features with subtle glowing make-up

Ready for her close-up: Jasmine framed her features with subtle glowing make-up

Eye-catching: The elegant ruched shoulder join was her outfit's most striking feature, and the high cut of the dress allowed the blonde beauty to show glimpse of her trim pins

Eye-catching: The elegant ruched shoulder join was her outfit’s most striking feature, and the high cut of the dress allowed the blonde beauty to show glimpse of her trim pins

Dressed to the nines: Jasmine added to her look with a pair of golden teardrop earrings while catching the eyes of onlookers with her double-styled hairdo

Dressed to the nines: Jasmine added to her look with a pair of golden teardrop earrings while catching the eyes of onlookers with her double-styled hairdo

She let her blonde tresses flow down to her shoulder on one side but kept a part slicked back behind her ear on the other.

The newlywed wife of the Channel Nine presenter completed her look with bright red nail varnish and a clutch that resembled a makeup box.

Karl and Jasmine were two of the most high-profile attendees at an already star-studded charity gala for Australia’s most generous philanthropists and industry leaders. 

Gruelling: The ex-breakfast show presenter's workout comes after The Sydney Morning Herald claimed he has gotten in shape in time to shoot his series, This Time Next Year

Gruelling: The ex-breakfast show presenter's workout comes after The Sydney Morning Herald claimed he has gotten in shape in time to shoot his series, This Time Next Year. Pictrured: Actor and Karl's 'fitness buddy' Rodger Corser, 46

Gruelling: On Wednesday, Karl (left) conducted an intense fitness session with celebrity trainer Chief Brabon and actor Rodger Corser, 46 (right)

Stand-outs: Karl and Jasmine were two of the most high-profile attendees at an already star-studded charity gala for Australia's most generous philanthropists and industry leaders (pictured at their December 2018 wedding)

Stand-outs: Karl and Jasmine were two of the most high-profile attendees at an already star-studded charity gala for Australia’s most generous philanthropists and industry leaders (pictured at their December 2018 wedding)

The event intends to raise funds for the Sydney Children’s Hospital Foundation in Randwick.

Guests will be treated to a menu from celebrity chefs Guillaume Brahimi and Nobu Matsuhisa, and a guest performance by Australian hitmaker Amy Shark, 33.

On Wednesday, Karl conducted the intense fitness session with celebrity trainer Chief Brabon and actor Rodger Corser, 46.

She's got the Midas touch! Julie Bishop (right), 62, dazzled in a metallic gown as she posed with her partner David Panton (left), 58, at the annual Gold Dinner in Sydney on Thursday evening

She’s got the Midas touch! Julie Bishop (right), 62, dazzled in a metallic gown as she posed with her partner David Panton (left), 58, at the annual Gold Dinner in Sydney on Thursday evening

Stunning: The politician turned heads in her gown, which featured beaded fringing and delicate cap sleeves

Stunning: The politician turned heads in her gown, which featured beaded fringing and delicate cap sleeves

Looking good: Letting the statement garment do all the talking, Julie accessorised with a pearl bracelet and drop earrings

Looking good: Letting the statement garment do all the talking, Julie accessorised with a pearl bracelet and drop earrings

Power duo: Actor Simon Baker looked dapper as he attended the gala with his glamorous actress wife, Rebecca Rigg

Power duo: Actor Simon Baker looked dapper as he attended the gala with his glamorous actress wife, Rebecca Rigg 

Good-looking pair: The couple, who tied the knot in 1998 and have three children together, seemed to be in great spirits on the night

Good-looking pair: The couple, who tied the knot in 1998 and have three children together, seemed to be in great spirits on the night 

The ex-breakfast show presenter’s workout comes after The Sydney Morning Herald claimed he has gotten in shape in time to shoot his series, This Time Next Year.

The publication also claimed Karl completed a staggering 65 interviews over seven days for the show, which finished shooting in March.

While Karl has another two years left on his contract with the Nine Network, it is unclear what his next move will be now that shooting for This Time Next Year has wrapped. 

Scarlet siren: The Today Show presenter Deborah Knight looked showstopping in a red one-shoulder gown

Scarlet siren: The Today Show presenter Deborah Knight looked showstopping in a red one-shoulder gown

Turning heads: The 46-year-old presenter wore her hair slicked back and framed her features with subtle glowing make-up

Turning heads: The 46-year-old presenter wore her hair slicked back and framed her features with subtle glowing make-up

Suited and booted: Once Upon A Time In Hollywood actor Damon Herriman, 49, looked dapper at the event

Suited and booted: Once Upon A Time In Hollywood actor Damon Herriman, 49, looked dapper at the event 

It takes two: Composer Sarah Hopkins posed alongside chef Mat Moran

It takes two: Composer Sarah Hopkins posed alongside chef Mat Moran

Bold look: Marketing guru Emma Van Haandel rocked a pink furry jacket while fashion insider Eva Galambos donned a teal embellished skirt

Bold look: Marketing guru Emma Van Haandel rocked a pink furry jacket while fashion insider Eva Galambos donned a teal embellished skirt 

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