Chords of: Last Friday Night (T.G.I.F) by: Katy Perry. (E/B, Ebm7, Abm7, B) are the main chords of the song. The chords are displayed instantly in real-time with a YouTube player, four synced views, instrument diagrams, loop practice and a built-in vocal-remover mixer.
“Last Friday Night (T.G.I.F)” by Katy Perry is in B Major and runs at about 125 BPM, giving it an upbeat, driving pulse. Our analysis found 34 different chords across 248 chord changes; the ones that carry the song are E/B, Ebm7, Abm7, B.
Ebm7 is the chord you will hold longest — roughly 19% of the 8:04 the chords were tracked for. The song opens with Abm7 → F#6 → C# → B → Abm7 → Ebm7 → C# → B. Play the timeline above to hear each change land in real time.
Difficulty: advanced — 6 main chords with 8 extended, altered or slash voicings. Guitar tip: put a capo on fret 2 and use A major shapes — the song stays in B Major but every chord becomes an open chord.
| Chord | Time held | Share |
|---|---|---|
| Ebm7 | 1:34 | 19% |
| Abm7 | 1:19 | 16% |
| B | 1:17 | 16% |
| C# | 1:16 | 16% |
| Gm6 | 0:44 | 9% |
| F# | 0:31 | 6% |
| Bmaj7 | 0:09 | 2% |
| F#/G# | 0:09 | 2% |
B – Abm7 – F#6 – C# – B – Abm7 – Ebm7 – C# – B – Abm7 – Ebm7 – C# – B – Abm7 – Ebm7 – C# – B – Abm7 – Ebm7 – C# – E6 – Cm7b5/Bb – Abm7 – Cm – Ebm7 – C# – B7 – Abm7 – B – Abm7 – F#6 – C# – B – Abm7 – Ebm7 – C# – B – Abm7 – Ebm7 – C# – F#/C# – C# – B6 – C#/G# – Ebm7 – C# – B6 – F#/G# – …
