(simple version for acoustic guitar)

Em                          D
  I've gone through changes
Em                      D
  I've gone through pain
C                                          G        D
  But there's not enough reason for me to go insane
Em                  D
  I know the feeling
Em                  D
  Just when it grows
  C          G                        D                         C  D
 I'm in a rage from my head down to my toes
G                             D   Em                          C  D
 You know it aint easy running out of thrills
G                            D                    Bm                               
 You know it aint easy when you dont know what you want
                                   C         D
 What do you want      Woahooo    you want to


Chorus:
Em                   G                         D                    A
  ROCK NOW ROCK THE NIGHT   'till early in the morning light
Em                    G                         D   A
  ROCK NOW ROCK THE NIGHT    oh  oh
Em                    G                       D               A
  ROCK NOW ROCK THE NIGHT  you better believe it's right
Em                   G                          D    A      C
  ROCK NOW ROCK THE NIGHT    oh   oh    ohh


Em                 D
    I know my limit
Em                  D
  Just what it takes
C                              G                D
  When things ain't good enough i just pull the brakes
Em                  D
  Sometimes its easy
Em                  D
  Sometimes so tough 
C                    G                       D                            C  D
 But just get one thing clear I can't get enough
G                             D   Em                         C  D
 You know it aint easy running out of thrills
G                            D                    Bm                   
 You know it aint easy when you dont know what you want
                                  C         D
 What do you want      Woahooo    you want to

Chorus 2:
Em                   G                         D                    A
  ROCK NOW ROCK THE NIGHT   'till early in the morning light
Em                    G                         D   A
  ROCK NOW ROCK THE NIGHT    oh  oh
Em                    G                       D               A
  ROCK NOW ROCK THE NIGHT  you better believe it's right
Em                   G                          D    A      C
  ROCK NOW ROCK THE NIGHT    oh   oh    ohh

  C
  YEAH YEEEEAH

  Em
  ROCK NOW ROCK THE NIGHT
  Em
  ROCK NOW ROCK THE NIGHT
  Em
  ROCK NOW ROCK THE NIGHT
  Em
  ROCK NOW ROCK THE NIGHT


  ROCK IT!