The duo's debut single "Ma Boy" blended dance-pop and R&B elements, establishing their signature sound. The track became a modest hit, showcasing their vocal abilities and performance skills.
- "Ma Boy" was released on May 3, 2011, as a digital single. It was produced by Brave Brothers, a prominent South Korean producer. The song peaked at number 2 on South Korea's Gaon Digital Chart.
- The accompanying music video featured a futuristic, black-and-white aesthetic. It highlighted the duo's sharp choreography and confident stage presence.
- "Ma Boy" laid the foundation for Sistar19's subsequent successful releases, including "Gone Not Around Any Longer." The single contributed to Sistar's overall popularity in the K-pop scene.
Sistar19 is the subunit of the South Korean girl group Sistar, formed by Starship Entertainment. They debuted in 2011.
Tracklist
