Delta Goodrem surprises Molly Meldrum with impromptu Christmas performance in $1,700 Gucci T-shirt

Joy to the world! Delta Goodrem surprises Molly Meldrum’s house guests with an impromptu Christmas performance while rocking a $1,700 Gucci blade T-shirt

She’s been busy in the recording studio working on her sixth studio album.

And on Wednesday, Delta Goodrem treated Australian music veteran Molly Meldrum and his Christmas house guests to a private performance.

The 35-year-old singer-songwriter looked every inch the casual pop star, as she lit up the room singing Happy Birthday to a long-time friend.

Joy to the world! Delta Goodrem (left) surprised Australian music veteran Molly Meldrum (right) and his guests with impromptu Christmas performance on Wednesday afternoon

The Australian hitmaker was dressed for comfort in an oversized yellow Gucci blade T-shirt worth $1,700 and trench coat style skirt.

She showed off her natural complexion, opting for little makeup which included mascara.

The stunning blonde accessorised her look with long dangly earrings, strappy heels and freshly manicured nails.

Natural beauty! The Australian hitmaker was dressed for comfort in an oversized yellow Gucci shirt worth $2,165 and trench coat style skirt. Pictured with publicist Linda Freedman

Natural beauty! The Australian hitmaker was dressed for comfort in an oversized yellow Gucci shirt worth $2,165 and trench coat style skirt. Pictured with publicist Linda Freedman

The Innocent Eyes hitmaker was accompanied by her longtime hunky guitarist Matt Copley, who was also dressed for comfort in a cream coloured shirt and white ripped denim jeans. 

Earlier this month, the ARIA award-winner took to Instagram to reveal she’s been ‘living inside a music bubble’ working on her sixth studio release.

‘It’s a part of the process in creating something meaningful,’ the 35-year-old captioned the snap. 

Christmas joy! The Innocent Eyes hitmaker was accompanied by her longtime hunky guitarist Matt Copley (left), who was also dressed for comfort in a cream coloured shirt, and white ripped denim jeans

Christmas joy! The Innocent Eyes hitmaker was accompanied by her longtime hunky guitarist Matt Copley (left), who was also dressed for comfort in a cream coloured shirt, and white ripped denim jeans

She stunned in a makeup free snap, while she sat on a leather coach in a recording studio.

Delta, who recently confirmed she was returning for another round of judging duties on The Voice Australia, recently celebrated her 35th birthday. 

The natural beauty marked the occasion with a luxury cruise around Sydney Harbour with close friends and family.

Get excited! Delta Goodrem (pictured) has revealed she's been living 'inside a music bubble' while she works on her upcoming sixth studio album

Get excited! Delta Goodrem (pictured) has revealed she’s been living ‘inside a music bubble’ while she works on her upcoming sixth studio album

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