"2 Hearts" is a song recorded by Australian singer Kylie Minogue for her tenth studio album, X (2007). It was written and produced by Jim Eliot and Mima Stilwell of the British electropop group Kish Mauve. Initially, the song was released on 9 November 2007 by Parlophone. The song was Minogue's first commercial single since she was diagnosed with breast cancer in May 2005. After the announcement, Minogue took a hiatus between 2005 and 2007 to recover from her illness.

The song is a cover version of a track originally recorded by Kish Mauve. Musically, the song is a pop rock-oriented song, which features elements of glam rock and Rock and roll. The song features instrumentation of electric guitars, guitars, drums, keyboards and piano riffs. The song also features "whooo"'s towards the singles chorus. Upon its release, "2 Hearts" received mixed reviews from music critics. The song was praised for its departure of musical content and the song's strength, however the song received criticism for the song's production and felt it didn't live up to expectations.

Commercially, the song was successful worldwide. The song managed to top the spot in her native Australia and Spain, while it peaked inside the top ten in countries Italy, Sweden, United Kingdom, Norway and Switzerland. Though the song was released in North America, the song did not manage to chart on any component Billboard charts, but did chart in Canada. The music video for "2 Hearts" was directed by Dawn Shadforth and filmed at Shepperton Studios in London, England. It features Minogue performing the song on a stage, where she danced on a piano and featured the band playing along with the song.

Additionally, the song was featured on three of Minogue's tours. The song was first performed on her KylieX2008 Tour, where she played as an 'erotic bellboy'. The stage featured a green set, with a gigantic skull behind her. The song was also featured on her North American tour For You, for Me, where it was featured in the middle of the setlist. The song was then added to the setlist of her Aphrodite World Tour, where it was performed in Japan only.

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