Determining the absolute "fastest" rapper in K-pop is tricky, as there's no official benchmark. However, based on analysis of syllable-per-second (SPS) counts, Huh Jayeon (Nature) holds the current record with an SPS of 9.88 in her group's song, "Dance Monkey."
While several other idols are known for their speed, including Zico (Block B) and RM (BTS), Jayeon's performance surpasses them based on available data. Other fast rappers include Changbin (Stray Kids) and SUGA (BTS), each displaying incredible technical proficiency.
It's important to note that speed isn't the sole measure of rapping skill. Factors like flow, delivery, enunciation, and lyrical content all contribute to a rapper's overall effectiveness. Therefore, focusing solely on speed can provide an incomplete picture.
