Guaynaa is a Puerto Rican reggaetonero, rapper, singer, and songwriter best known for the 2019 smash single and viral video "Rebota," a conscious (yet innovative) throwback to the Afro-Latino roots of 1990s reggaeton, complete with hard, spiky, dembow beats, and perreo dancing. He also inspired the #RebotaChallenge, a social media phenomenon that had fans of the song posting their own video takes on perreo. (Even Karol G participated.) Guaynaa (whose given name is Jean Carlos Santiago Pérez), is not a revivalist, he sees the reggaeton lineage as a fertile ground for innovation in urban Latin Music and much Latin pop.

The artist was born in Caguas, Puerto Rico, not in Guaynabo as many think, given his stage name. Though he had been singing and rapping for most of his life, the music bug bit hard after he graduated from high school and was attending college. He began posting covers and originals on his Twitter account and YouTube, including his debut, 2015's "La Pista Esta Fea" b/w "Mothafoca" under the moniker Janko El Guayna.