Led Zeppelin made a lot of references to Lord Of The Rings in their music, particularly in Led Zeppelin IV (1971).
Since Tolkein sadly passed away in 1973, he lived to see the release of the first five Led Zeppelin albums.
Do we have any record of him discussing these albums?
Do we know if he even heard them?
There is always more to say, but pretty much the same question came up here a couple of months ago and turned into a decent thread led by u/jbdyer. You might like to review those responses while waiting for fresh answers to your query: