I just told my friend that Led Zeppelin's song, Ramble On, is based on LoTR and he didn't believe me. Is this not common knowledge? XD Lyrical evidence provided by LyricFind :
No. 7: 'Ramble On' - Top 50 Led Zeppelin Songs
Ramble On – Podcast – Podtail
The Lord of the Rings - Wikipedia
Why Were Rock Stars So Into 'The Lord of the Rings?' | GQ
Led Zeppelin – Ramble On Lyrics | Genius Lyrics
The Lord of the Rings: The Rings of Power' Season 1, Episode 8: Ramble On - The New York Times
Led Zeppelin's The Lord of the Rings - YouTube
Led Zeppelin Lord Of The Rings Ramble On YouTube - YouTube