Bono was on stage with Kylie Minogue in Sydney tonight, performing a pop-perfect version of Kylie's 'Kids'.

'Ladies and gentleman we are in the company of greatness tonight, ' said Kylie, about an hour into her second comeback show at the Sydney Entertainment Centre. 'Put your hands together for ... Bono!'

'And we'll paint by numbers
Till something sticks
Don't mind doing it for the kids...'

As if the audience weren't already elated at seeing Kylie back on stage following her illness, the arrival of Bono raised the temperature still higher.

'Here Kitty, Kitty!' he called, as Kylie - dressed as a leopard and moving as gracefully - danced with him through a flawless rendition of her 2000 hit. By the end of the song she was on her knees, saying 'all you need to do is make some noise...'

Adam, Larry and Edge were also enjoying Kylie's comeback tonight - taking advantage of the one night off in the band's series of three Sydney shows.