Not My Fault (song)

"Not My Fault"
Single by Reneé Rapp and Megan Thee Stallion
from the album Mean Girls (Music from the Motion Picture)
ReleasedDecember 15, 2023
GenreDisco-pop
Length2:50
LabelInterscope
Composer(s)
Lyricist(s)
Producer(s)
Reneé Rapp singles chronology
"Tummy Hurts"
(2023)
"Not My Fault"
(2023)
Megan Thee Stallion singles chronology
"Cobra"
(2023)
"Not My Fault"
(2023)
"Hiss"
(2024)
Music video
"Not My Fault" on YouTube

"Not My Fault" is a song by American singer Reneé Rapp and American rapper Megan Thee Stallion from the 2024 Mean Girls musical film adaptation, in which Rapp portrays Regina George. The song was written by the artists and the Broadway musical's original composer Jeff Richmond and original lyricist Nell Benjamin, alongside Ryan Tedder, Alexander 23, Billy Walsh, and Jasper Harris.

It was released on December 15, 2023, as the lead single for the film soundtrack, and is one of the two songs written specially for the film, with the others songs being from the original stage musical. The song plays during the end credits scene and is the only song from the soundtrack that is not used as a musical number.