The song had chart success worldwide, reaching number one in Canada, Slovakia and the Czech Republic, and has attained top-ten positions in Austria, Ireland, Italy, and Poland.

The clip features Perry, as her teenage alter-ego Kathy Beth Terry, at a house party filled with music and dancing.

Rebecca Black, Corey Feldman, Debbie Gibson, Kenny G, Hanson, Kevin McHale, and Darren Criss all appear in the video.

According to the director, the inspiration behind the video was Sixteen Candles, works by American filmmaker John Hughes, and other 1980s high school films.

According to Music Rooms, Perry claims that after a wild night of partying and streaking, she wrote the song about her antics and what she remembered the next day.

We went out to this place called Wildcat and got crazy," Perry admitted: "We had a couple of beers and danced until we died, then brought the party back to the hotel room."

The photo features Perry in nerdy gear, including mouth guard and glasses, and was taken when she hosted the Teen Choice Awards in summer 2010.

[12] AllMusic picked it among the top tracks on the album, and said that Perry "salutes fellow attention-whore Kesha on 'Last Friday Night (T.G.I.F.)'".

[13] Rolling Stone said that "Perry likes her songs chatty; in the kegger romp "Last Friday Night," she chirps, "Think I need a ginger ale/That was such an epic fail".

[15] Spin Magazine said that "Last Friday Night recounts an evening of nonstop naughtiness – think streaking, skinny-dipping, and ménage à trois-ing.

With lyrics about photos ending up online after a debauched evening, it's also reminiscent of Lady Gaga singing about drunkenly losing her keys and phone on 'Just Dance.'

Club said that "assuming that everything here is based on real life also means we have to accept that she's had a ménage à trois on the indie-rock-meets-American Idol cut Last Friday Night (T.G.I.F.)".

[10] Chris Richards from The Washington Post said that "Over strummy guitars and zigzagging keyboards, Perry recounts an evening of debauchery with no repercussions, her innocent transgressions (streaking, skinny-dipping) mentioned in the same breath as more serious trouble (mysterious bruises, a blackout), but..... [when] it's time for Perry to reflect on her 3 am follies, she stiffly sings, "That was such an epic fail."

[26] As of August 2020, the single has been certified 6 times platinum by the Recording Industry Association of America (RIAA)[27] and sold 3.8 million copies in the US.

[32] In an interview with MTV, director Marc Klasfeld said that the video's storyline was inspired by Sixteen Candles and other works of John Hughes, as well as "all those great '80s high school movies.

"[4] Before the video premiered, Perry created Facebook and Twitter profiles for a "brace-faced nerd-turned-hottie" thirteen-year-old she plays named Kathy Beth Terry.

[35] Starting from June 8, a series of short video clips was uploaded on the Facebook profile, YouTube and Perry's official web version premiered later on the same day on Funny or Die.

On July 11, after crossing the half-million "likes" mark, Perry released an interview in character as Terry on Digital Spy.

[36] Perry, in character as Kathy Beth Terry made various references to Rebecca Black and other guests on the video on her Twitter and Facebook.

[39] "Kathy Beth Terry" (Perry), a teenager with braces, headgear, and oversized glasses, has just awakened the morning after a house party, surrounded by passed-out partygoers.

A male guest, Aaron Christopherson (Glee star Darren Criss) opens the door to her bedroom and congratulates her on having the "best party ever."

To cheer her up, Black gives Kathy a makeover, ripping off her headgear with pliers, waxing her upper lip, dressing her in tight-fitting neon clothes, and teasing her hair out.

The video shifts back to the next morning, where she looks at the photos with regret, but is also ecstatic to have a naked football player sleeping in her bed.

The video's ending credits feature various deleted lines, bloopers, and extra scenes from the party, as well as Everett bringing Kathy breakfast in bed.

After the credits end, it repeats the shot where Kathy gets tape ripped off her upper lip, but her scream is heard this time.