I dont see how anybody could think the progression is A-G-A-G-C#-b, but somebody did

The chords are simple. For the verse atleast.

G (320003@1)       A (x02220@1)    G (320003@1)     Ait's (x02220@1)a sweet sensation over the dub
  D (xx0232@1)   C#m (x13321@4)                Bm (x24432@1)  Ai (x02220@1)wanna situation, but don't wanna stop
it's the drugs for sober over the dub
with the sweetest inspiration, don't wanna stop