If you actually know some of the languages and you realize they are just singing jibberish (much worse than actual real songs), it's impossible to listen to. The instrumental ones can be great.
https://www.youtube.com/watch?v=6bNMxWGHlTI
Cuando para mucho mi amore de felice corazón...
I can't say anything about autogenerated lyrics.
I've found some okay but listening to "meaningless" music doesn't sit right with me
Which one are you referring to?