“Hello Stranger” is an Afro-pop track, a genre that brings a rhythmic and tropical vibe, distinguishing it from Eunbi’s previous dance-pop releases. The song runs for 3 minutes and 1 second and was recorded in 2024 under Woollim Entertainment, with distribution by Kakao Entertainment. The songwriting and production team includes imsuho, Naasim, LuckyJang, and Arineh Karimi .​

The official music video for “Hello Stranger” was directed by Novv Kim and released on April 14, 2025. It features Eunbi in a series of visually striking scenes that complement the song’s exotic and mysterious aura. Fans have noted the video’s aesthetic appeal and Eunbi’s captivating performance.​

In addition to the music video, Eunbi delivered a live performance of “Hello Stranger” on Music Bank, showcasing her dynamic stage presence and choreography. This performance further emphasized the song’s energetic and tropical elements.