There may be a lot of unknown singers or guitarists lurking in your record collection, as you'll discover in our list of 20 Rock Songs With Secret Guests.

The names are certainly recognizable. After all, who hasn't heard of stars like Mick Jagger, Joe Walsh and George Harrison? But you might not know they're sitting in on these particular sessions.

Keep reading to find out more about these mystery collaborations, and what motivated the artists to work together in the below list of 20 Rock Songs With Secret Guests.

20 Rock Songs With Secret Guests

There may actually be a lot of unknown singers or guitarists lurking in your record collection.

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