friends. My track 'Last Friday Night (T.G.I.F.)' is a song about debauchery because I had one of those nights in Santa Barbara. 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." She added: "Most of that song is actual truth, apart from the ménage à trois..... unfortunately! But, yes, streaking in the park, that's what we did, so we had to write a song about it the next day!" One of the friends in this trip was co-writer Bonnie McKee, who said the song encapsulated "Katy and my wild drinking days" from their younger days. McKee stated "TGIF is pretty much a word for word description of our trip to Santa Barbara, so I love that one. It's really catchy and fun and makes me nostalgic." The official artwork for "Last Friday Night (T.G.I.F.)" using scenes from the music video, shows Perry both before and after a makeover. She revealed the cover artwork for "Last Friday Night (T.G.I.F.) Remixes!" on her Facebook page. 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. The image is surrounded by 1980s-style neon colors and swirly graphics. A remixed version of "Last Friday Night (T.G.I.F.)", featuring Missy Elliott, was released on August 8, 2011, to radio and as a digital download. It was released as the album's fifth single on June 6, 2011, through Capitol Records. Composition "Last Friday Night (T.G.I.F.)" is a dance-pop song, with elements of indie rock, which runs for three minutes and 50 seconds. It is set in common time and has a moderate tempo of 126 beats per minute. It is written in the key of F♯ major, and Perry's vocals span one octave, from C♯4 to F♯5. It follows the chord progression B–G♯m7–D♯m7–C♯. Critical reception 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.)'". 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". Slant Magazine said that "'Last Friday Night (T.G.I.F.)' is a lifeless roller-rink jam with a 'T! G! I! F!' shout-along that