[a] It is a trap-pop-produced, reggaeton-infused, hip-hop song with lyrics about self-empowerment, and served as a response to the increasing hate the boy band received on the internet.

On Spotify, one month after the release of the song's accompanying music video, "Bazinga" was streamed 4.6 million times.

[7] In early 2021, the band teased their music comeback[8] and released the lead single of their upcoming extended play (EP) "What?"

[11] In an interview with Toni Gonzaga, band member Josh stated; "It's not a big deal anymore, so far, and especially these days, because we receive more love than hate".

[1][2][13] In November 2021, Billboard also noted the release of "Bazinga" as a single after it entered the Hot Trending Songs chart.

[3] John Paulo Nase[b] wrote "Bazinga" and co-produced it with Canadian-Filipino music producer Simon Servida.

[1] Hannah Lorenzo of Indiana Daily Student described the song as a "motivational speech" with lyrics combined with a hard-hitting beat and rap.

[30] Jonathan Tal Placido directed the accompanying music video for "Bazinga", which premiered on YouTube on October 29, 2021.

[31][32] SB19 promoted their third-anniversary concert Our Zone (2021), via their social media accounts, where they also teased the song's accompanying music video days prior to its release.

Alter egos of the band members can be seen in the video game, in which they imitate a fight with their enemies in an underground arena.

[32] Mostly, the band members are dancing; in one scene, they wear black-and-red martial arts uniforms while performing on a stage.

[46] In 2022, the band also included the song on the set list of their first arena concert Dunkin' Presents SB19, which was held at Smart Araneta Coliseum.