are there 2 versions of "under pressure"?

[Schadenfroh]

ok, i know that queen and david bowie both worked to create this song. i know both of them sing in the song. but why does "under pressure" on my david bowie CD last 3:57 and the "under pressure" on my queen cd last 4:03? i cant hear any differance.

edit: i just realized, they probably just chopped it off earlier when they put together the cd

 

[nageov3t]

don't underestimate the Vanilla Ice version

 

[Shawn]

duh