"Boss" was the lead single from Fifth Harmony's debut album, Reflection, released in 2015. The song showcased the group's evolving R&B-infused dance-pop sound.
- "Boss" was released as a single on July 7, 2014.
- The single was released by Syco Music and Epic Records.
- The song features a prominent horn sample and a heavy beat, characteristic of the dance-pop genre.
Fifth Harmony is a girl group formed on the US version of The X Factor in 2012. They were known for their brand of polished pop music.
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