Halls of Science 4 Lyrics
| Song | Halls of Science 4 |
| Artist | Aperture Science Psychoacoustics Laboratory |
| Album | Portal 2 (Songs to Test By) (Volume 2) |
YouTube Results (More on YouTube)
| Song | Halls of Science 4 |
| Artist | Aperture Science Psychoacoustics Laboratory |
| Album | Portal 2 (Songs to Test By) (Volume 2) |