"Hand on Your Heart" is a song by Australian singer Kylie Minogue from her second studio album, Enjoy Yourself (1989), and released as its lead single on 24 April 1989. Much like her previous releases up to Let's Get to It (1991), the song was written and produced by English songwriting and record production trio Stock Aitken Waterman (SAW). Referenced tracks during composition included "This Old Heart of Mine" by the Isley Brothers and "That's the Way Love Is" by Ten City.^[1]

Upon release, "Hand on Your Heart" received positive reviews from music critics, who deemed it a highlight from the album and praised it as a strong single. It was also a commercial success, peaking at number four in Australia and within the top-ten in Finland, France, Japan and Switzerland. "Hand on Your Heart" became Minogue's third number-one hit on the UK Singles Chart.

The song was performed on some tours by Minogue, including it on her Enjoy Yourself Tour, Rhythm of Love Tour, and was featured on her Showgirl: The Greatest Hits Tour and the Homecoming Tour. In 2006, Swedish singer José González released an acoustic cover version of "Hand on Your Heart" as a single. His version peaked at number 29 on the UK Singles Chart.

SAW approached composition of the song with excitement and enthusiasm following the success of Kylie's debut album, and were keen to move her sound along in accordance with the latest house-influenced pop sounds.^[1] The song centers around themes of honesty and communication in a relationship. The song is sung in the viewpoint of a girl whose boyfriend is trying to break up with her yet she does not believe their relationship is over; she insists that he puts his hand on his heart and tells her until he really means it.

Minogue re-recorded the song for her 2012 album The Abbey Road Sessions, reworking the song to feature brushed drums and gentle piano which magnify the heartbreak and make the lyrics such as “Oh, I wanna hear you tell me / You don't want my love” sound pleading, not defiant.^[2]

On 24 April 1989, "Hand on Your Heart" was released in the United Kingdom.^[12] The song became Minogue's third song to debut at number two on the UK Singles Chart, before it peaked at number one the following week. On its third week it was replaced on the top of the chart by the UK Hillsborough disaster charity single "Ferry Cross the Mersey" by the Christians, Holly Johnson, Paul McCartney, Gerry Marsden and Stock, Aitken and Waterman.^[13] "Hand on Your Heart" also topped the UK Dance and Indie charts.

The song was one of the first singles to sell well on cassette, selling 11,000 copies in the first week of release. This would have been enough to have Minogue enter in at number one, something no female had ever done at the time. However, PWL issued the cassette single at a cut price of £1.99, which was cheaper than chart regulations at the time allowed. This meant the Bangles stayed at number one with "Eternal Flame", with around 1,600 more sales. Because of this the rules were quickly changed so that cut-price cassette singles were allowed. The market for cassette singles stood at less than 0.5% at the time and the BPI hoped to encourage its growth.^[14]

Outside of the UK, the song was also successful. It reached number four in Australia and became Minogue's fifth top-five single on the singles chart. It reached the top 10 in Denmark, Finland and France and the top 20 in Germany, the Netherlands, New Zealand and Sweden.

"Hand on Your Heart" was accompanied with colorful music video directed by Chris Langman and shot at Minogue's hometown in Melbourne in March 1989. The video features Minogue dancing in a modern house. She appears wearing a dress with a big heart on it that changes colour between vibrant colours of red, blue and yellow, Minogue travels from room to room, dancing playfully for the camera. Langman admitted to dissatisfaction with the finished video, which was produced under unusually tight deadlines.^[1] According to Minogue's then boyfriend and label mate Jason Donovan, PWL Records was highly displeased with the video.^[15] It was Langman's final collaboration with Kylie, who filmed most of her subsequent videos in the UK.^[1]

A live version of the video was also released and featured Minogue performing a special "live remix" in Japan, both versions featured on Kylie's Greatest Hits 87-97 DVD. An alternate version of the "Hand on Your Heart" video was broadcast on UK TV pre-release, but has never been screened again. On this version Minogue's shoes spin on camera and introduce all three of her new outfits of matching colours. Only one "shoe spin" remains on the final version. Released to music video channels prior to the single's commercial release, the video was a hit, gaining significant airplay on music video channels. The video was released commercially on the Ultimate Kylie companion DVD, released in December 2004.

The first tour that "Hand on Your Heart" was performed on was the Disco in Dream/The Hitman Roadshow, as the original recording. It was then performed on the Enjoy Yourself Tour, which was launched to promote Enjoy Yourself, the album from which the song is lifted. It began with an a cappella chorus intro before the original was performed. It was then performed the following year on the Rhythm of Love Tour as the original again. It was performed on the Let's Get to It Tour the year after as the normal version again. The song was then not performed until Minogue's 2000 tour: On a Night Like This Tour as the third song in the set. This version was not similar to the original and had a different sound. It was then performed on Minogue's Showgirl: The Greatest Hits Tour in 2005 where it opened the sixth act: "Kylesque". It had a similar sound to the original but had different bass lines. This tour was cancelled due to Minogue's diagnosis of breast cancer. The tour was resumed under the name Showgirl: The Homecoming Tour. "Hand on Your Heart" was also in this set list in the sixth act "Pop Paradiso", but closed this act. This was a new remix featuring a thicker bass line. More recently, the song was performed on Minogue's Kiss Me Once Tour to promote her twelfth studio album Kiss Me Once. It opened the "Dollhouse Medley" which featured 4 PWL hits: "Hand on Your Heart", "Never Too Late", "Got to Be Certain" and "I Should Be So Lucky".