The song received a double platinum certification from the Recording Industry Association of America (RIAA), which denotes track-equivalent sales of over two million units.

It was directed by David Wept, and features Lil Tjay and Lala Baptiste in an on and off relationship, while also showing pictures of Pop Smoke in an eternal blue flame.

Prior to "Mood Swings", Pop Smoke and Lil Tjay had previously collaborated on the tracks "War", "Mannequin", "Mary Jane", and "Zoo York".

Producer Dizzy Banko, who incorporated drums and snares into the song upon the request of Beat Menace, was personally contacted by Pop Smoke mere weeks before his murder.

[4] The song was written by Pop Smoke and Lil Tjay, who are credited under their legal names of Bashar Jackson and Tione Merritt, Omar Gomez, and Deandre Sumpter.

[5] "Mood Swings" was released on Pop Smoke's posthumous debut studio album Shoot for the Stars, Aim for the Moon, as the thirteenth track on July 3, 2020.

"[17] Paste writer Jade Gomez wrote that Pop Smoke effortlessly raps about having sex with women off their birth control, while issuing them a reminder that he is not interested in a relationship.

[18] Abby Monteil of The Buffalo News cited that the song, "details the 'mood swings' that [Pop Smoke's] girlfriend goes to after realizing that he's not using a condom during sex.

"[19] Comparing it to Kanye West's sound on 808s & Heartbreak (2008), Variety's A.D. Amorosi said the song and "Something Special" are so romantic, they ended up as corny, but in a "genuinely touching fashion".

[14] Similarly, Danny Schwartz of Rolling Stone praised Pop Smoke's versatility, stating, it was "endearing" to hear him rap about lowering his guard, ease his rasp, and trade his endless swagger for tenderness.

[25] Charles Lyons-Burt of Slant Magazine opined that when Pop Smoke ad-libs: 'Oh, you ain't know I could sing?,' at the beginning of the song, it comes "across as empty boast".

[28] Writing for Complex, Jordan Rose commented that Walker offered her talents on the remix, saying she fits in perfectly as she "croons over the smooth beat with Pop Smoke's adlibs in the background".

[37][38] The song was certified double Platinum by the British Phonographic Industry (BPI), denoting track-equivalent sales and streams of 1,200,000 units in the UK.

They lip sync the song's lyrics as they travel across several venues and locations, look in a mirror as they fix their hair, and pose by a swimming pool and in sports cars.