quite simply, heres the bass riff

G -----------------------|
D ----------3-55555555---|
A -55555555--------------|
E -----------------------|

chorus

G -----------------------------------------------------------------|
D -33-33-55-55-33-33-55-55-33-33-55-55-33-33-55-55-5-5-5-5-5-5-5-5-| 
A -----------------------------------------------------------------|
E -----------------------------------------------------------------|