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14,015 TRANSITIONS ANALYZED#1 at 23%: Which Transition?The 100 most repeated chord transitions extracted from thousands of songs. Even the first 10 will transform your guitar practice routine.

Shawn Mendes - I Know What You Did Last Summer Chords

DATA-DRIVENWhich Chord Comes Next?Learn the most likely chord transitions on guitar and start playing songs with confidence.
ChordsAm, F, G, C, E, Em
Strumming↓-↓↑-↑↓↑

Before you play, tune your guitar and use the tools below to set up your view and flow.

AmAhhh,Fhey,Gahhh-ahhhCG
HeAmknows,dirtyFsecretsthatIkeep,doesheGknowit’skillingme?
HeCknows,heGknows,doesheAmknow?Another’sFhandshavetouchedmyskin
Iwon’tGtellhimwhereI’vebeen,heCknows,heGknows,heFknows
FIt’stearingmeGapart,she’sslippingAmaway(I’mslippingaway)
AmIjusthangingontoallAmthewordssheusedtoFsay?
FThepicturesonherGphoneshe’snotcomingAmhome(I’mnotcominghome)
Cominghome,comingEhome
AmIknowwhatyoudidlastsummer,(ah-ah)
FJustliedtome,there’snoother(Hey-ey)
GIknowwhatyoudidlastsummer,
CTellGmewhereyou’veAmbeen?
AmIknowwhatyoudidlastsummer,(ah-ah)
FLookmeintheeyesmylover(Hey-ey)
GIknowwhatyoudidlastsummer,
CTellGmewhereyou’veAmbeen?
AmIknow,Iknow,Iknow,Iknow,IFknow,Iknow,Iknow(ah-ah)(Hey-ey)
GIknow,Iknow,Iknow,Iknow,ICknow,Iknow,GIknow(ah-ah)(ah-ah)
AmIdidn’tmeanit,no,Ididn’tFmeanit,meanit,no(ah-ah)(Hey-ey)
GCan’tseemtoletyougo,Ccan’tseemtoholdGyouclose(ah-ah)(ah-ah)
AmIknow
WhenFshelooksmeintheeyes,Gtheydon’tseemasbright,
NoCmore,noGmore,IAmknow,thatsheFlovedmeatonetime
WouldIGpromiseherthatnight,crossmyCheartandhopetoGdie
FIt’stearingGmeapart,she’sslippingAmaway(I’mslippingaway)
AmIjusthangingontoallthewordssheusedFtosay?
ThepicturesonherGphonePictures on my phone
She’snotcomingAmhome(I’mnotcominghome)
EOh,nananayeah
AmIknowwhatyoudidlastsummer,(ah-ah)
FJustliedtome,there’snoother(Hey-ey)
GIknowwhatyoudidlastsummer,
CTellGmewhereyou’veAmbeen?
AmIknowwhatyoudidlastsummer,(ah-ah)
FLookmeintheeyesmylover(Hey-ey)
GIknowwhatyoudidlastsummer,
CTellGmewhereyou’veAmbeen?
FIknow,Iknow,Iknow,Iknow,IGknow,Iknow,Iknow
AmIknow,Iknow,Iknow,Iknow,EmIknow,Iknow,Iknow(No,no,no)
FCan’tseemtoletyougo,Gcan’tseemtokeepyouclose(Holdmeclose)
AmCan’tseemtoletyougo,Emcan’tseemtokeepyouclose(YouknowIdidn’tmeanitthough)
FTellmewhereyou’vebeenlately,Gtellmewhereyou’vebeenlately(Justholdmeclose)
AmTellmewhereyou’vebeenlately,Emtellmewhereyou’vebeenlately(Don’t,don’t,don’t,don’tletmego)
FCan’tseemtokeepyouclose,Gcan’tseemtoletyougo(Ididn’tmeanitthough)
AmIknowyoudidn’tmeanitthough,EmIknowyoudidn’tmeanitthough(Idon’twannaletyougo)
FTellmeyoudidn’tmeanitthough,
GTellmeyoudidn’tmeanitthough(Can’tseemtoletyougo,seemtoletyougo)
AmIknowyoudidn’tmeanitthough,EmIwannaknowyoumeanitthough(Holdmeclose)
FIknowyoudidn’tmeanitthough,GIknowyoudidn’tmeanitthough(Justholdmeclose)
AmCan’tseemtoletyougo,Emcan’tseemtoholdyouclose,
AmIknowwhatyoudidlastsummer,(ah-ah)
FJustliedtome,there’snoother(Hey-ey)
GIknowwhatyoudidlastsummer,
CTellGmewhereyou’veAmbeen?
AmIknowwhatyoudidlastsummer,(ah-ah)
FLookmeintheeyesmylover(Hey-ey)
GIknowwhatyoudidlastsummer,
CTellGmewhereyou’veAmbeen?
AmIknow,Iknow,Iknow,Iknow,IF
know,Iknow,Iknow(ah-ah)(Hey-ey)
GIknow,Iknow,Iknow,Iknow,ICknow,Iknow,GIknow(ah-ah)(ah-ah)
AmIknow,Iknow,Iknow,Iknow,IF
know,Iknow,Iknow(ah-ah)(Hey-ey)
GIknow,Iknow,Iknow,Iknow,ICknow,Iknow,GIknow(ah-ah)(ah-ah)
AmIRING…know
SONG DATA3 Chords, 200 Chains, 1 BookDiscover the most-used three-chord combinations in songs and build real command on guitar.
14,015 TRANSITIONS ANALYZED#1 at 23%: Which Transition?Master guitar today with the most repeated high-impact chord transitions.
ArtistShawn Mendes
AlbumHandwritten
GenresPop
Year2015
KeyAm
DifficultyIntermediate

How to play I Know What You Did Last Summer on Guitar (Step-by-step)

Shawn Mendes - I Know What You Did Last Summer on guitar requires 6 chords and 7 core chord transitions. You can find the full step-by-step guide below. Before you start, tune your instrument. The song uses the ↓-↓↑-↑↓↑ pattern; practice it muted first, or simplify to downstrokes while you learn the changes.

I Know What You Did Last Summer uses these transitions most often: F → G (25), G → Am (23), and Am → F (18). These transitions may feel a little challenging at first, but with steady practice you can play this song quickly.When you are ready, begin with Am - F chord transition.

1. Am → F chord transition

Guitar Am chord diagram Fingering: x-0-2-2-1-0Guitar Am chord diagram
Guitar F chord diagram Fingering: 1-3-3-2-1-1 Barre at fret 1.Guitar F chord diagram

Here's how to move from Am to F:

  1. Lift your index finger from B string fret 1 and place it on E string fret 1.
  2. Slide your middle finger from D string fret 2 to G string fret 2.
  3. Lift your ring finger from G string fret 2 and place it on A string fret 3.
  4. Place pinky on D string fret 3.

This transition appears in the verse, played 18 times.

Am to F

2. F → G chord transition

Guitar F chord diagram Fingering: 1-3-3-2-1-1 Barre at fret 1.Guitar F chord diagram
Guitar G chord diagram Fingering: 3-2-0-0-0-3Guitar G chord diagram

Here's how to move from F to G:

  1. While playing F, lift your pinky from D string fret 3.
  2. Lift your index finger from E string fret 1 and place it on A string fret 2.
  3. Slide your middle finger from G string fret 2 to E string fret 3.
  4. Lift your ring finger from A string fret 3 and place it on E string fret 3.

This transition appears in the verse, played 25 times.

F to G

3. G → C chord transition

Guitar G chord diagram Fingering: 3-2-0-0-0-3Guitar G chord diagram
Guitar C chord diagram Fingering: x-3-2-0-1-0Guitar C chord diagram

Here's how to move from G to C:

  1. Lift your index finger from A string fret 2 and place it on B string fret 1.
  2. Slide your middle finger from E string fret 3 to D string fret 2.
  3. Lift your ring finger from E string fret 3 and place it on A string fret 3.

This transition appears in the verse, played 15 times.

G to C

4. G → Am chord transition

Guitar G chord diagram Fingering: 3-2-0-0-0-3Guitar G chord diagram
Guitar Am chord diagram Fingering: x-0-2-2-1-0Guitar Am chord diagram

To move from G to Am:

  1. Lift your index finger from A string fret 2 and place it on B string fret 1.
  2. Slide your middle finger from E string fret 3 to D string fret 2.
  3. Lift your ring finger from E string fret 3 and place it on G string fret 2.

This transition appears in the verse, played 23 times.

G to Am

5. Am → E chord transition

Switching from Am to E:

  1. Lift your index finger from B string fret 1 and place it on G string fret 1.
  2. Slide your middle finger from D string fret 2 to A string fret 2.
  3. Lift your ring finger from G string fret 2 and place it on D string fret 2.

This transition appears in the chorus, played 2 times.

6. Am → Em chord transition

Switching from Am to Em:

  1. While playing Am, lift your index finger from B string fret 1.
  2. Lift your middle finger from D string fret 2 and place it on A string fret 2.
  3. Slide your ring finger from G string fret 2 to D string fret 2.

This transition appears in the verse, played 6 times.

7. Em → F chord transition

To move from Em to F:

  1. Lift your middle finger from A string fret 2 and place it on G string fret 2.
  2. Slide your ring finger from D string fret 2 to A string fret 3.
  3. Place index finger on E string fret 1.
  4. Place pinky on D string fret 3.

This transition appears in the verse, played 5 times.

I Know What You Did Last Summer chord transition analysis

A short, data-driven summary of the chord flow in I Know What You Did Last Summer.

  • I Know What You Did Last Summer includes 114 chord transitions, 7 of them unique.
  • These transitions represent 0.03% of all chord transitions in Chordier.
  • I Know What You Did Last Summer contains 4 of the top 10 transitions across Chordier.
  • These transition patterns show how I Know What You Did Last Summer connects to the rest of Chordier. Mastering them helps you move to similar songs faster.
    After G, the most likely next chords across Chordier are C (25%), D (24%), and Am (13%).
    • G → C: 25%
    • G → Am: 13%
    After Am, the most likely next chords across Chordier are F (26%), G (21%), and C (16%).
    • Am → F: 26%
    • Am → Em: 10%
SONG DATA3 Chords, 200 Chains, 1 BookThe 200 most popular three-chord chains from real songs. See which songs use each chain and expand your repertoire with patterns that actually matter.