| Artist | Hearts2Hearts (하츠투하츠) |
| Producer | SM Entertainment |
| Composer | Sebastian Thott, Maya Rose, Arineh Karimi |
| Lyricist | Park Tae-won, Danke, Lee Hyung-seok (PNP) |
| Music Publisher | SM Entertainment / Kakao Entertainment |
“RUDE!” was released on February 20, 2026 by SM Entertainment and Kakao Entertainment as a digital single. Composed by Sebastian Thott, Maya Rose, and Arineh Karimi — with arrangement by Sebastian Thott — and written by Park Tae-won, Danke, and Lee Hyung-seok of PNP, the track marks Hearts2Hearts’ confident return with a bold, self-assured concept. The group debuted their first fan meeting “Hearts 2 House” the following day on February 21. The song also received two official iScreaM remixes — a Silly Silky Remix and a yunji Remix — released on March 27, 2026 via SM’s EDM label ScreaM Records.
“RUDE!” debuted at No. 15 on New Zealand’s RMNZ Hot Singles and No. 80 on the Billboard Global 200, and No. 37 on Billboard Global Excl. US — strong chart results for an SM Entertainment rookie group still in their debut year. The song’s attitude-forward concept, polished dance performance, and multilingual delivery across Korean and English have resonated with the global K-Pop fanbase, while the iScreaM remix campaign extended the track’s reach across electronic music audiences.
Yeah, let’s go
Yeah, yeah
Yeah I walked right in
seuchineun sungan moduga My friend
yeogijeogiseo insareul geonne Yeah yeah
da jayeonseureopge ara Give me space
eonjena geurae nune ttel My face
heulgyeoboji ma igeon No race
Nuh uh uh uh