So if you live in Korea, you know that this song is playing all the time.
My girlfriend likes it so I figured out the chords pretty quickly.
If you want the lyrics in Hangul(Korean alphabet), look them up.

Standard tuning, no capo

Verse 1

D (xx0232@1)       A (x02220@1)          Bm (x24432@1)       G (320003@1)             D (xx0232@1)      A (x02220@1)       Bm (x24432@1)           
han yeojaga meoreojyeoga namjaneun norae bureujiman nunmuri naneungeol 
         Gibyeoriran (320003@1)D (xx0232@1)        A (x02220@1)          Bm (x24432@1)        G (320003@1)      D (xx0232@1)        A (x02220@1)         Bm (x24432@1)   Gneol (320003@1)manjilsuga eomneungeol I know yeah eh tteoreojineun nal jabajwo Hello

Pre-Chorus

D (xx0232@1)                   AmI (x02210@1)hate this love song I hate this love song
Bm (x24432@1)                  GI (320003@1)hate this love song I hate this love song
D (xx0232@1)                   AmI (x02210@1)hate this love song I hate this love song
Bm (x24432@1)                  GI (320003@1)hate this love song I hate this love song

Chorus
D (xx0232@1)                     Am (x02210@1)             Bm (x24432@1)                    GI (320003@1)sarang noraega sirheo dasin an bureuri neoreul tteoolliji anke ijeul su itge
D (xx0232@1)                     Am (x02210@1)             Bm (x24432@1)                  GI (320003@1)sarang noraega sirheo useumyeo bureuri geudaega oeropji anke jigeum 
         D (xx0232@1) A (x02220@1)     Bm (x24432@1)         G (320003@1)    D (xx0232@1) A (x02220@1)         Bm (x24432@1)        Gneoegero (320003@1)nan ooh ooh ooh ooh ooh ooh hoo nan ooh ooh ooh ooh ooh ooh hoo

Verse 2
D (xx0232@1)       A (x02220@1)         Bm (x24432@1)        G (320003@1)            D (xx0232@1)       A (x02220@1)             Bmnan (x24432@1)duryeowo I sesangeun uimi eobseo dalgwa byeori inneun neo inneun geu gose
         Gderyeogajwo (320003@1)D (xx0232@1)        A (x02220@1)         Bm (x24432@1)  G (320003@1)        D (xx0232@1)       A (x02220@1)           Bm (x24432@1)   Gurineun (320003@1)areumdawonneunde You know naege sarangeul gareuchyeojun neo Hello

Pre-Chorus

D (xx0232@1)                   AmI (x02210@1)hate this love song I hate this love song
Bm (x24432@1)                  GI (320003@1)hate this love song I hate this love song
D (xx0232@1)                   AmI (x02210@1)hate this love song I hate this love song
Bm (x24432@1)                  GI (320003@1)hate this love song I hate this love song

Chorus
D (xx0232@1)                     Am (x02210@1)             Bm (x24432@1)                    GI (320003@1)sarang noraega sirheo dasin an bureuri neoreul tteoolliji anke ijeul su itge
D (xx0232@1)                     Am (x02210@1)             Bm (x24432@1)                  GI (320003@1)sarang noraega sirheo useumyeo bureuri geudaega oeropji anke jigeum 
         D (xx0232@1) A (x02220@1)     Bm (x24432@1)         G (320003@1)    D (xx0232@1) A (x02220@1)         Bm (x24432@1)        Gneoegero (320003@1)nan ooh ooh ooh ooh ooh ooh hoo nan ooh ooh ooh ooh ooh ooh hoo

Bridge
D (xx0232@1)                                       A (x02220@1)ttaseuhan haessal tto dareun sesang sseulsseulhi chumchuneun galdaebat pureun
Bm (x24432@1)                     G (320003@1)                             D (xx0232@1)        
eondeok wi nan yeojeonhi geunyeowaui motdahan daehwa amu daedap eomneun 
              A (x02220@1)                   Bm (x24432@1)                    Gmupyojeonghan (320003@1)jeo haneul huingureum dwie sumeo itgetji neon byeori doetgetji
D (xx0232@1)                     Am (x02210@1)                           Bm (x24432@1)                                  
nun gamgo ne sumgyeoreul neukkyeo ne kkumeul kkwo nae ipgae beonjin miso 
            G (320003@1)                       D (xx0232@1)                     Am (x02210@1)             
jigeum nan neowa sumeul swieo sigana meomchwo geunyeowa nal galla nochimara
            Bm (x24432@1)                   Gbarama (320003@1)meomchwo nege bonaeneun majimak pyeonji hanjang

Refrain

D (xx0232@1)                     Am (x02210@1)             Bm (x24432@1)                    GI (320003@1)sarang noraega sirheo dasin an bureuri neoreul tteoolliji anke ijeul su itge
D (xx0232@1)                     Am (x02210@1)             Bm (x24432@1)                  GI (320003@1)sarang noraega sirheo useumyeo bureuri geudaega oeropji anke jigeum 
         D (xx0232@1) A (x02220@1)     Bm (x24432@1)         G (320003@1)    
neoegero nan ooh ooh ooh ooh ooh ooh Oh I hate this love song 
D (xx0232@1)A (x02220@1)                      Bm (x24432@1)   Gnan (320003@1)Oh I hate this love song
               DOh (xx0232@1)I hate this love song