I cannot believe how many times I have heard that beat sampled. I think I can truly say it maybe one of the most sampled beats ever.
Here's a few i can think of at the moment
tech n9ne-psycho bitch
delienquints feat. Brotha Lynch Hung- Halloween
Bedlam-Seven horsemen
Tru-Hoodie Hoo
death-possessed by the ouija board
Speedy Loc-look into my eyez
Tear the Club up thugs feat Spice 1 - Wet Party
Ice T- The Tower
Hitman-Murder Inc. off The Chronic 2001
Young Droop- Real Shit off of Moment of Impakt
The other theme song I hear being used quite a bit is the theme song from the movie Phatasm