If your bass has the string E, you can play the whole song! Yeah I am being true.
Actually, I am going to tab a very easy way.

Intro (Keyboard, when the drum kicks in, bass kicks in too)

(Play this 3x)
Riff 1
A------------------------------
E-0000000000000---777777-888888

Then 
Riff 2
E-8-7-5-3-1---1-1

(Lyrics start)
* Play RIFF 1 3x
* Play RIFF 2 1x
* Play RIFF 1 3x
* Play RIFF 2 1x

Now Chorus
(IT'S 10 AND NOT 1-0)

A------------------------------------
E-88888-1010101010--777777777-8-7-5-3

A--------------------------------------------------
E-88888-1010101010--777777777-8-7-5-3---1--1---0--0

Solo (1): Riff 1 2x

Lyrics again
* Play Riff 1 3x
* Play Riff 2 1x

Chorus again

Solo (2): Riff I 7x, then Riff II 1x

Then chorus again... now you can play it alone