Coldplay are currently in Australia for an appearance on that country's version of The Voice, but they played a gig in Sydney last night.
"We were wondering what we could do to make our concert special," Chris Martin told the crowd before the start of the encore. And then he brought out Aussie Voice coach Kylie Minogue, whom he lovingly described as "Australia's Queen."
They then proceeded to perform "Where the Wild Roses Grow," a song that Minogue recorded as a duet in 1996 with Nick Cave, followed by an upbeat rendition of her hit "Can't Get You Out of My Head." Check out the video above.