This vocoder-heavy duet with Enrique Iglesias was penned by the Spanish-American singer with his frequent producer Mark Taylor. Also credited are Alex Smith and Samuel Preston, who both contributed to Olly Murs' "Heart Skips a Beat" hit single.
Minogue didn't get to record in the studio with Iglesias. They recorded their part separately and communicated through phone calls and emails.
Speaking to The Sun, Kylie said that she was moved to tears after first hearing the Electro ballad in Paris as it reminded her of a certain someone. "I cried when I heard that song," she confessed. "It's so moving and I was emotional. And working with Enrique made it an even more special song. I love his voice."
The song also features as a track on the international and US deluxe versions of Iglesias' Sex and Love album.
Speaking to The Daily Mail, Iglesias said: "It happened really organically. Kylie heard it in the studio, and she ended up loving it. She sang her parts, and everything fit so well."
Pete Townshend never had a #1 UK hit with The Who or as a solo artist, but he did produce and play on a song that hit the top spot there: "Something In The Air" by Thunderclap Newman, a group he assembled.