According to the UK's Department For International Trade it's overwhelmingly "Non-ferrous metal products" at $8.5 billion in 2019. Financial services (credit and "miscellaneous financial services") are 2 & 3 on the list by value, but only a bit more than $200 million in total for both of them.
I'm fond of the Imperial County of Reuss, which was semi-independent in the Holy Roman Empire. The madlads named all their rulers "Heinrich", resulting such personages as Heinrich LXXII ("Heinrich the 72nd").
More recently there's the Saar Protectorate, which the French encouraged to become a fully independent country after WWII. But the inhabitants wanted nothing to do with it and rejoined West Germany.
To Jagger and Richards in particular. They ceded the song-writing credit back to Richard Ashcroft in 2019.
If you haven't heard the song he sampled it from it's pretty blatant (starts from 0:18 and just keeeeeps going). And I'm speaking as someone who loves "Bittersweet Symphony".
Been playing quite a bit recently after not touching it for a year or so. Hit my usual wall right around the end of Year 2 with marriage and the Mines done and just the rabbit's foot left in the Community Centre. I'll see if I can finally get deep into the Desert this time.
My mother's cat stares for food from one side of her chair and then, after being fed, stares from the other side of the chair because that is clearly a different kitty who has not been fed yet.