Styles P - Good Times (I Get High)
Nelly - Wrap Sumden
Tony Yayo - I'm So High
50 Cent - High All The Time
Lloyd Banks - I Get High
Cypress Hill - Roll It, Light It, Smoke It Up
Cypress Hill - Hits From The Bong (and a bunch more)
Bones Thugs - Weedman (and a bunch more)
Three Six Mafia - Stay High (Fly)
Proof - High Rollers
Hendrix - Purple Haze
Rick James - Mary Jane
Method Man/Redman - How High part 2
Redman - Smoke Buddah
Sublime - Smoke 2 Joints
Tupac - High Til I Die
Afroman - Cuz I Got High
Outkast - Crumblin Herb
Snoop - Lets Get Blown
Redman - How To Roll A Blunt

All I can think of right now.