"Rude!" is a song recorded by South Korean girl group Hearts2Hearts. Written by Sebastian Thott, Maya Rose and Arineh Karimi, it was released by SM Entertainment on February 20, 2026. Initially a standalone single, the song was later included on Hearts2Hearts's second extended play, Lemon Tang, released on June 22, 2026.
Background and release On February 6, 2026, SM Entertainment announced that Hearts2Hearts would be releasing the single "Rude!" on February 20, 2026. On February 12, a teaser trailer titled "How to Behave When the Heart is Missing" was released. On February 19, the music video teaser was released. The song was released alongside its music video on February 20.
Composition "Rude!" was written by Park Tae-won, Danke, and Lee Hyung-seok, composed and arranged by Sebastian Thott, with Maya Rose and Arineh Karimi contributing to the composition. It was described as a house-based dance song with lyrics that "express the cute rebellion of tomboys who are not bound by established rules".
Commercial performance "Rude!" debuted at number 129 on South Korea's Circle Digital Chart in the chart issue dated February 15–21, 2026; on its component charts, the song debuted at number three on the Circle Download Chart, and number 131 on the Circle BGM Chart. On the Billboard Korea Hot 100, the song debuted at number 11 in the chart issue dated March 7, 2026.
In Singapore, the song debuted at number 9 on the RIAS Official Singapore Regional Chart in the chart issue dated February 20–26, 2026. In Indonesia, the song debuted at number 13 on the ASIRI Official Indonesia Chart in the chart issue dated February 20–26, 2026. In Hong Kong, the song debuted at number 19 on the Billboard Hong Kong Songs in the chart issue dated March 7, 2026. In Taiwan, the song debuted at number 11 on the Billboard Taiwan Songs in the chart issue dated March 7, 2026.
In United States, the song debuted at number ten on the Billboard World Digital Song Sales in the chart issue dated March 7, 2026. In New Zealand, the song debuted at number 15 on the RMNZ Hot Singles in the chart issue dated February 27, 2026. Globally, the song debuted at number 80 on the Billboard Global 200 in the chart issue dated March 7, 2026. It also debuted at number 37 on the Billboard Global Excl. US in the chart issue dated March 7, 2026.
Promotion Hearts2Hearts debuted the song at their first fan meeting titled "Hearts 2 House" on February 21. They subsequently performed the song at four music programs: Mnet's M Countdown on February 26, KBS's Music Bank on February 27, MBC's Show! Music Core on February 28, and SBS's Inkigayo on March 1. Track listing Digital download and streaming – Remixes "Rude!" (Silly Silky remix) – 3:56 "Rude!" (Yunji remix) – 3:11
Credits and personnel Credits adapted from Melon.
Studio SM Starlight Studio – recording, digital editing SM Dorii Studio – recording SM Aube Studio – recording SM Wavelet Studio – digital editing, engineered for mix SM Concert Hall Studio – mixing Klang Studio – mixing in Dolby Atmos Sterling Sound – mastering
Personnel SM Entertainment – executive producer Hearts2Hearts – vocals Park Tae-won – lyrics Danke – lyrics Lee Hyung-seok – lyrics Sebastian Thott – composition, arrangement Maya Rose – composition, background vocals Arineh Karimi – composition, background vocals Jsong – vocal directing, background vocals Kriz – vocal directing Jeong Yoo-ra – recording, digital editing Jeong Jae-won – recording Kim Hyo-joon – recording Kang Eun-ji – digital editing, engineered for mix Nam Koong-jin – mixing Koo Jong-pil – mixing in Dolby Atmos Joe LaPorta – mastering
Accolades + Music program awards for "Rude!" Program Date Inkigayo M Countdown Show! Music Core
Charts
Weekly charts + Weekly chart performance for "Rude!" Chart (2026) Peakposition China (TME Korean) 3 Global 200 (Billboard) 57 Hong Kong (Billboard) 12 Indonesia (ASIRI) 13 Japan Hot 100 (Billboard) 19 New Zealand Hot Singles (RMNZ) 16 Singapore (RIAS) 15 South Korea (Circle) 1 South Korea Hot 100 (Billboard) 5 Taiwan (Billboard) 2 US World Digital Song Sales (Billboard) 10
Monthly charts + Monthly chart performance for "Rude!" Chart (2026) Position South Korea (Circle) 1
Release history + Release history for "Rude!" Region Date Format Version Label Various February 20, 2026 Original March 18, 2026 Japanese March 27, 2026 Remixes
References