Soñar (Breaker)

"Soñar (Breaker)" is a song by South Korean girl group Nmixx for their second extended play Fe3O4: Break. It was released as the EP's pre-release single by JYP Entertainment and Republic Records on December 4, 2023.

Background and release
On November 28, 2023, JYP Entertainment announced Nmixx would be releasing their second EP titled Fe3O4: Break and its pre-release track "Soñar (Breaker)" on January 15, 2024, and December 4, 2023, respectively. A teaser for the music video of the song was released on December 2. The song and its music video were released 2 days later on December 4.

Composition
"Soñar (Breaker)" was written by Bok Jooyoung (Lalala Studio), and Oh Hyunsun (Lalala Studio), and composed by Brian U (The Hub), Honey Noise (The Hub), Aftrshok (The Hub), Joseph K (The Hub), Brown Panda (The Hub), LSY, NVR Know, Frankie Day (The Hub), Awrii (The Hub), Ayushy (The Hub), and Jacob Aaron (The Hub). The song has been described as having "a mix of the Latin-styled hip-hop genre and the UK garage genre".

Critical reception
Lee Hong-hyun wrote for IZM that the song is a "well orchestrated single that is a culmination of the group's previous experimentations".

Commercial performance
"Soñar (Breaker)" debuted at number 142 on the Circle Digital Chart in the chart issue dated December 3–9, 2023, and at number 20 on the Circle Download Chart in the chart issue dated December 3–9, 2023.