"Harley Quinn" is a song by American regional Mexican band Fuerza Regida and electronic music producer Marshmello.

It was released on December 14, 2023 through Sony Music Latin and Street Mob, serving as the third single and fifteenth track on the formers' album Pa Las Baby's y Belikeada (2023).

[3][4] The song was written by Ortíz Paz, Jesús Rodríguez Jr., Jonathan Caro, Miguel Armenta, Moises López, and Osbaldo Sánchez.

An official music video was uploaded to YouTube, on the formers' channel, on December 14, 2023, directed by Justice Silvera and produced by Mike Breslauer.

[7][8] and days after the release of Pa Las Baby's y Belikeada, it became the sixth most streamed song on Apple Music in Mexico.