Key experienced difficulties finding a lead single for his second studio album, and therefore requested SM's in-house songwriter Kenzie write a song for him based on his specifications.
"[6] Divyansha Dongre of Rolling Stone India described the song as having a "celebratory atmosphere", adding that it conveys the message that Key's ambitions "are not driven by accolades or trophies and are instead fueled by sheer passion and dedication to his craft.
[7] Key performed the song for the first time at the SM Town Live 2022: SMCU Express concert at Suwon World Cup Stadium.
Ilgan Sports reporter Jung Jin-young praised his performance, stating, "I thought "Bad Love" was the best song in the world.
[1] In the music video, Key portrays a character with "celestial characteristics",[3] and performs the choreography on various sets including a desert, a giant birdcage and a throne room, all while wearing a series of elaborate costumes.
She praised him for "pushing his boundaries as both a sonic and visual artist", noting that "the scope in which he presents his worldview widens each time he returns".