| Clue | Source | Date |
|---|---|---|
| 1968 song by US band Steppenwolf whose lyrics coin the term 'heavy metal' and which is considered a prototype of the genre (4,2,2,4) | ||
| 1968 Steppenwolf hit | USA Today | 20 Sep 2021 |
| 1968 Steppenwolf hit featured in 'Easy Rider' | ||
| 1968 Steppenwolf hit featured in "Easy Rider" | LA Times Daily | 26 Jul 2021 |
| 1968 #2 hit for Steppenwolf | Wall Street Journal | 20 Jan 2021 |
| 1968 hit featured in the film 'Easy Rider' | ||
| Classic rock song in "Easy Rider" |