"Rebel Heart" is a song recorded by South Korean girl group Ive for their third Korean extended play Ive Empathy. It was released as the EP's first single on January 13, 2025, by Starship Entertainment.
On December 24, 2024, Starship Entertainment announced that Ive would be releasing their third Korean extended play titled Ive Empathy on February 3, 2025. It was also announced that "Rebel Heart" would be pre-released on January 13, 2025. On January 5, 2025, the concept trailer was released, followed by the concept film four days later. On January 12, the music video teaser was released. The song was released alongside its music video on January 13.
"Rebel Heart" was written by Nietzsche, composed by Emily Harbakk, Ryan S. Jhun, Thomas Gustafsson, Jimmy Jansson, Maia Wright, Jack Brady, and Jordan Roman, and arranged by Ryan S. Jhun, Gucci Caliente, and The Wavys. It was described as a song with lyrics that "depicts the solidarity march of rebels".
"Rebel Heart" debuted at number ten on South Korea's Circle Digital Chart in the chart issue dated January 12âÂÂ18, 2025, ascending to number four in the following week, and later peaked at number one. The song topped all real-time charts in South Korea and became their fifth song to achieve a perfect all-kill (PAK). In Japan, the song debuted at number 44 on the Billboard Japan Hot 100 in the chart issue dated January 22, 2025. On the Oricon Combined Singles Chart, the song debuted at number 50 in the chart issue dated January 27, 2025, ascending to number 44 in the following week.
In Singapore, "Rebel Heart" debuted at number 22 on the RIAS Official Singapore Chart in the chart issue dated January 17âÂÂ23, 2025. The song also debuted at number 21 on the RIAS Official Singapore Regional Chart in the chart issue dated January 10âÂÂ16, 2025, ascending to number eight in the following week. The song also debuted at number 22 on the Billboard Singapore Songs in the chart issue dated February 1, 2025. In Hong Kong, the song debuted at number 12 on the Billboard Hong Kong Songs in the chart issue dated February 1, 2025. In Taiwan, the song debuted at number seven on the Billboard Taiwan Songs in the chart issue dated February 1, 2025.
In United States, "Rebel Heart" debuted at number six on the Billboard World Digital Song Sales in the chart issue dated January 25, 2025. In United Kingdom, the song debuted at number 65 on the OCC's UK Singles Downloads Chart, and number 67 on the UK Singles Sales Chart in the chart issue dated January 17âÂÂ23, 2025. Globally, the song debuted at number 97 on the Billboard Global 200, and number 51 on the Billboard Global Excl. U.S in the chart issue dated February 1, 2025.
Ive performed the song on four music programs in the first week of promotion: Mnet's M Countdown on January 16, KBS's Music Bank on January 17, MBC's Show! Music Core on January 18, and SBS's Inkigayo on January 19. In the second and final week of promotions, they performed on four music programs: M Countdown on January 23, Music Bank on January 24, Show! Music Core on January 25, and Inkigayo on January 26, where they won the first place in all appearances.
On South Korean music programs, "Rebel Heart" won eleven first place awards.