Former Australian Idol co-stars Shannon Noll and Guy Sebastian reunite on stage for iconic hit

Shannon Noll and Guy Sebastian rose to fame starring side by side on Australian Idol in 2003.

And on Sunday, the former reality TV rivals reunited to perform one of Shannon’s iconic hits. 

Guy, 41, and Shannon, 48, took to the stage together at Guy’s concert at the Sydney Opera House. 

The Voice Australia host called his competition mate on stage for a surprise appearance. 

The singers belted out What About Me  – the Moving Pictures hit that Shannon released as a very successful cover song in 2004.

Shannon Noll and Guy Sebastian rose to fame starring side by side on Australian Idol in 2003. On Sunday, the former reality TV rivals reunited to perform one of Shannon’s iconic hits. Both pictured 

A roar went up from the crowd as Shannon walked on stage and belted out the song with Guy.  

Several fans posted their videos of the moment, calling it ‘iconic’ and saying the pair are ‘Australian legends’. 

Earlier this year, the pals beamed as they posed together in a photo shared to Shannon’s Instagram.

‘Great to see my mate @guysebastian today!’ Shannon wrote in the caption alongside the images.

Guy, 41, and Shannon, 48, took the stage together at Guy's concert at the Sydney Opera House.

Guy, 41, and Shannon, 48, took the stage together at Guy’s concert at the Sydney Opera House.

The Voice Australia host called his competition mate on stage for a surprise appearance

The Voice Australia host called his competition mate on stage for a surprise appearance

The singers belted out What About Me - the Moving Pictures song that Shannon released as a very successful cover song in 2004

The singers belted out What About Me – the Moving Pictures song that Shannon released as a very successful cover song in 2004

‘We were doing a shoot at Maroubra and he called in to say g’day! Always great to catch up!’

Their fans were delighted, with many commenting underneath the photo to praise the pair.

Guy famously won the 2003 season, releasing his first single, Angels Brought Me Here. 

Shannon came in as runner-up in a tense Opera House finale, with many fans feeling he was robbed of the win.

They rose to fame starring side by side on Australian Idol in 2003 (pictured)

They rose to fame starring side by side on Australian Idol in 2003 (pictured) 

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