Nah breh, unlike rappers...these other genres artists aren't constantly flaunting their wealth or talking about how much money they have,spent,make.
Taylor Swift leads Forbes' list of highest paid celebs under 30 - Los Angeles Times
If you think she's doing it big, Lady Gaga is 2-3x bigger than her...
That's what they are grossing, you really think Rihanna is getting all that money. She's got 100 nikkas in her ass. Same with Taylor Swift she signing contracts when she was like 12. Obviously I think they have more than most "cash king" rappers, but it's known that these industry built pop stars get raped. Her father is a banker and all that but I still think the games from the 90s are active. Didn't you see that article about Rihanna's singles, average cost of releasing 1 single was predicted to be over a million bucks. No one is investing those type of dollars when an artist is selling 2-3 mill worldwide but sells out 9 shows in London in a row. They'll eat of the tours and everything she does, cause they made her.
250k is still much, say taxes and fees is 40% of that, promoter takes 15%, she takes 15% and label, manager and anyone else she's signed to takes 30%.
All just made up numbers but it's a guess.