WCW used variants on pop songs for many performers: Jericho, Raven, Guerrero, etc., all had music that sounded a lot like rock songs. But they weren’t. WCW was a large enough company that they’d definitely get sued if they used the real ones.
On the Network, WWE often dubs these versions out in favor of these performers’ WWE themes. Why do they do this? It’s extra work for them, and WCW already did the work of making the music different enough to avoid a lawsuit.
Also of note: Booker T’s music remained unchanged through both companies. I believe that’s the only instance of this. Discuss.