Tom Cruise Primus' "Tommy The Cat" (emphasis begins at 3:22) http://www.youtube.com/watch?v=r4OhIU-PmB8 REASON: His name is Tom, and Led Zeppelin's "Poor Tom" cannot be played so I went for one of my favorite Tom-related songs.
Judd Apatow Primus' "My Name Is Mud" http://www.youtube.com/watch?v=953PkxFNiko REASON: His name is Judd, so I went for the almighty song that can be changed to "My Name IS Judd".