One of the world's biggest rock stars has paid tribute to two victims of a convicted paedophile during his live stage show in Adelaide.

Key points: Jon Bon Jovi dedicated a song to two victims of child abuse during his Adelaide show

Jon Bon Jovi dedicated a song to two victims of child abuse during his Adelaide show The two victims have been testifying in the case against paedophile Vivian Deboo

The two victims have been testifying in the case against paedophile Vivian Deboo Deboo was yesterday sentenced to more than six years in jail

Jon Bon Jovi took to the stage at Botanic Park and dedicated rock anthem "It's My Life" to two brothers who have been testifying in Adelaide's District Court during the sentencing of Vivian Deboo.

"These two brothers they put on masks and they fought a childhood abuser," Jon Bon Jovi said to the crowd.

"They met him in court today and he was sentenced to jail.

"We have to protect our children, it's not easy when you have to stand up in court and face your devil.

"So for those two brave brothers, my heart, my respect, this is for you guys."

This morning, one of the brothers forwarded a message to ABC Radio Adelaide that they had received from Bon Jovi's management after the concert.

Bon Jovi performed at Adelaide's Botanic Park as part of his 'This house is not for sale' 2018 tour. ( Twitter: @AussieLesley )

"Hope you guys had a great time, I will say this, in my five years with Bon Jovi I've never seen Jon Bon Jovi shout anyone out so that was really special for everybody," the text message read.

'Justice has finally fallen on Deboo'

Deboo — a paedophile who preyed on young boys he met through his local church — was yesterday sentenced to six years and seven months in jail after losing a bid to serve his sentence on home detention.

He was arrested in December 2016 and the court heard he was a respected member of a South Australian church when he groomed two young brothers and forced himself onto them at locations in the Adelaide Hills and on the Fleurieu Peninsula in the 1990s.

On commercial radio station 5AA this morning David Penberthy told listeners that one of the brothers had met Jon Bon Jovi through his line of work before the concert, and he shared his story of this week's court case with the star.

Mr Penberthy said in text messages with one of the brothers, he had been told that Jon Bon Jovi was so touched by the story that the brothers and their wives received front row seats to the concert and were taken backstage before the show.

The victims of paedophile Vivian Deboo and supporters outside court in Adelaide. ( ABC News: Rebecca Opie )

Deboo mobbed outside of court

Last week Deboo was mobbed by protesters as he entered the Adelaide District Court, rallying against his bid to avoid jail and serve his sentence on home detention.

The group chanted "shame on you, Viv Deboo" while armed with signs.

Outside of court yesterday as he was sentenced, one of the brothers — whose identity is suppressed — welcomed the sentence.

"We feel it does bring some justice and some closure to the horrendous atrocities that this man has inflicted against his victims," he said.

"My brother and I have suffered immeasurably through this court system because this monster has refused to admit his guilt and he has dragged us to hell and back.

"We stand united that justice has finally fallen upon Deboo's head."