I guess it's distracting as there is a lot of rubbish artists add while singing so not sure if it's useful

I haven't tried, but it might be interesting!

Besides music being good for the soul, I often encourage people to pay attention to how sound, particularly the VOWELS are manipulated in a way as to engage your listener emotionally. VOWELS are where the melody is stretched and given intonation. Imitate the vowels in the words of the songs.

I have tried it. I guess it is good to start learning with it but sometimes it does not really pay off as songs mostly use idioms or rare words. My purpose in learning a new language is to use it in my day-to-day life so for that I didn't get much support from songs because they are mostly romantic or motivational.

Songs in your target language can help you relax. However, there may be some grammatical mistakes in some songs.