Interestingly, in a recent interview Damon Albarn, the guy behing Gorillaz revealed that the song Clint Eastwood is a Mellotron preset. You can check the interview, featuring the sample here > https://www.youtube.com/watch?v=EDX6l9_58RA

Btw, if you're interested in synths and music gear, I run a newsletter about music producers and their studios > https://www.gasnewsletter.com/

[edit] uugghh, I messed up. I had in mind the omnichord. Damon Albarn used the omnichord, not the mellotron.