SPOILER ALERT: Aussie icon set to perform with Katy Perry at AFL Grand Final is revealed as duo are pictured rehearsing in Melbourne

Tina Arena will showcase her singing talents alongside Katy Perry at the AFL Grand Final on Saturday at the MCG in Melbourne.

The Australian megastar, 56, was photographed rehearsing with the American superstar on Thursday afternoonwhich makes for an exciting collaboration on stage.

In the photo you can see the duo singing passionately into their microphones, clearly picking up each other’s energy.

At one point they were supported by a group of dancers, dressed in futuristic, tight-fitting, bright orange outfits, adding a colourful accent to the whole thing.

The dancers’ sunglasses and fashionable aesthetic complemented the modern and futuristic theme of the performance.

The chemistry between Katy and Tina was palpable, they seemed to enjoy the duet and gave the audience an unforgettable performance.

Katy was spotted in a daring and futuristic ensemble during rehearsal.

The Roar singer showed off her sensational figure in a light blue crop top, paired with striking white shorts and large pockets that were attached to her shorts with silver chains.

Tina Arena will showcase her singing talents alongside Katy Perry at Saturday’s sporting event at the MCG

The Australian megastar, 56, was photographed rehearsing with the American superstar on Thursday afternoon, resulting in an exciting on-stage collaboration

The Australian megastar, 56, was photographed rehearsing with the American superstar on Thursday afternoon, resulting in an exciting on-stage collaboration

The leg coverings were wide, giving her outfit a striking, eye-catching silhouette.

Her dark hair was tied in a tight high ponytail, allowing her intense performance energy to take center stage.

During singing rehearsal, Tina opted for a more subdued look and preferred to keep it comfortable.

The couple is seen singing passionately into their microphones, clearly feeding off each other's energy

The couple is seen singing passionately into their microphones, clearly feeding off each other’s energy

At one point they are supported by a group of dancers dressed in futuristic, tight-fitting, bright orange outfits, adding a splash of color to the scene

At one point they are supported by a group of dancers dressed in futuristic, tight-fitting, bright orange outfits, adding a splash of color to the scene

She wore a long black coat, which added a touch of classic elegance to the performance.

Her outfit was completed with black pants and white sneakers, which gave her a chic yet comfortable look.

Tina wore her hair loose and natural, which allowed her iconic stage appearance to come into its own.

Katy was seen in a daring and futuristic ensemble

Katy was seen in a daring and futuristic ensemble

The sighting comes after Daily Mail Australia exclusively revealed that Tina had been booked as a special guest and had been quietly putting together her setlist over the past week.

Organisers hope she will create another memorable TV moment after Delta Goodrem performed alongside Robbie Williams in an iconic show at last year’s final.

It is not yet known whether Tina, who sings in English, Italian, French and Spanish, will take to the stage for pre-match, half-time or post-match entertainment.

The Roar singer showed off her sensational figure in a light blue crop top paired with striking white shorts and oversized pockets that are attached to her shorts via silver chains

The Roar singer showed off her sensational figure in a light blue crop top paired with striking white shorts and oversized pockets that are attached to her shorts via silver chains

At one point, the iconic singer added a touch of haute couture with a billowing silver cape that caught the wind, making her look almost ethereal as she stepped onto the court

At one point, the iconic singer added a touch of haute couture with a billowing silver cape that caught the wind, making her look almost ethereal as she stepped onto the court

Tina, known for her hit Burn and her cover of Don’t Cry for Me Argentina, has signed a contract after plans for Kylie Minogue to perform reportedly fell through.

It promises to be a spectacle with Cody Simpson singing the national anthem and 39-year-old fireworks star Katy expected to headline the match.

Fans are desperately hoping that Katy’s setlist will feature her biggest hits, including Dark Horse, Hot ‘n’ Cold, Roar and Teenage Dream.

With her sleek, high ponytail and matching bold blue eyeshadow, Katy fully embraces the avant-garde aesthetic and ensures all eyes are on her as she prepares to dazzle the crowd.

With her sleek, high ponytail and matching bold blue eyeshadow, Katy fully embraces the avant-garde aesthetic and ensures all eyes are on her as she prepares to dazzle the crowd.

Perry's makeup is bold and striking, perfectly complementing her futuristic outfit

Perry’s makeup is bold and striking, perfectly complementing her futuristic outfit

It was reported that the American pop star and the AFL had a row over her setlist, with Katy’s team reportedly resisting a request not to play any new songs.

Appears on SEN Breakfast On Monday, veteran AFL journalist Tom Morris claimed they had reached a compromise with Katy agreeing to just one new song.

“She plays about five songs and the AFL really wanted her to play five classic songs. She wanted to play two new ones,” he said.

Katy dominated the stage with a confident and energetic presence

Katy dominated the stage with a confident and energetic presence

She was surrounded by a line of male dancers dressed in futuristic orange and white outfits

She was surrounded by a line of male dancers dressed in futuristic orange and white outfits

The dancers' costumes are sleek, with geometric shapes and structured designs, complemented by red tinted sunglasses, giving a sci-fi, avant-garde vibe

The dancers’ costumes are sleek, with geometric shapes and structured designs, complemented by red tinted sunglasses, giving a sci-fi, avant-garde vibe

Their orange outfits stand out against the background, drawing attention to their synchronized, almost robotic stance as they perform alongside Katy

Their orange outfits stand out against the background, drawing attention to their synchronized, almost robotic stance as they perform alongside Katy

Katy stands at the front singing into the microphone, dressed in her metallic blue crop top and white shorts with attached, wide leg sleeves, continuing the futuristic theme

Katy stands at the front singing into the microphone, dressed in her metallic blue crop top and white shorts with attached, wide leg sleeves, continuing the futuristic theme

‘They ended up meeting halfway and she plays one new song and four classics.’

Co-host and AFL legend Kane Cornes, who revealed he is a fan of Katy Perry, added that the AFL should have a say in the planning of the hit stadium show.

“The AFL says, ‘We only want your hits. We only want your bangers. We only want your best stuff,'” he said.

The American singer is currently in Australia to promote her new album, 143, and her upcoming tour

The American singer is currently in Australia to promote her new album, 143, and her upcoming tour

It has been reported that the American pop star and the AFL have come to blows over her setlist, with Katy's team reportedly objecting to a request not to play any new songs.

It has been reported that the American pop star and the AFL have come to blows over her setlist, with Katy’s team reportedly objecting to a request not to play any new songs.

“We want Roar, we want Teenage Dream, we want Firework. They want all the songs that we know and love. And she pushed back and said, ‘No, no, I want to play two of my new songs.’

‘You know, when you go to a concert and they’re maybe old and you just want their good stuff. You just want their greatest hits.

“That’s what the AFL asked Katy Perry. And she’s gone: ‘Obviously, I want to promote some of my new music.'”