White Rabbit - Jefferson Airplane

Puff the Magic Dragon - Peter, Paul & Mary (although the songwriter claims it is not about drug use, I much prefer to think it is)

Two Joints - Sublime

Under the Bridge - Red Hot Chili Pepers

Hurt - Nine Inch Nails or Johnny Cash (both are excellent but Johnny Cash may be more gut wrenching)

Dr Feelgood - Motley Crue

I Love You, Mary Jane - Sonic Youth/Cypress Hill

Real Thing - Cypress Hill/Pearl Jam