I could listen to isolated vocals all day long. There's a wonder of a subreddit r/IsolatedVocals dedicated to this kind of thing. Some of my favorites so far.
Oasis – Some Might Say
Heart – Alone
The Clash – London Calling
A-ha – Take On Me
Talking Heads – Once In A Lifetime
Van Halen – Running With The Devil
Whitney Houston – How Will I Know?
Toto – Rosanna
Alice In Chains – No Excuses
Oasis – Live Forever
Nirvana – Smells Like Teen Spirit
The Who – Won't Get Fooled Again