I rejected it because the answers were the same, but the content was not. They were clearly two different answers that came up with the same song.
Here is the one from the OP:
I found it ! I hope this the right one, [Story Of My Life][1], by
the danish band Blast.
It is from 1986 and sang by the female singer Lise Dandanell. The
lyrics you quoted start at 1:13.
[1]: https://www.youtube.com/watch?v=VZ2ZIBOVJFo
Here is the post that was questioned as plagiarized:
it's Blast, the song title is Story Of My Life from their album Blast
2 1983
It's the same answer, but the details are different. Let's put it another way, if asking a question you expect to get the same answer if there is one true correct answer, but how it's stated and explained can be quite different.
Now there was a helpful plagiarized flag raised on an additional answer with the exact same YouTube link. In this case, it was a lot clearer that it was directly lifted since the number of views is so low on the video:
https://www.youtube.com/watch?v=VZ2ZIBOVJFo
Blast - Story of My Life a Jazz Band from Danish
I just want to point out this again raises to the issue with these questions and how we need a content guide for them. Should we moderate answers on these kinds of posts and delete them when they are the same? Probably, but it's not stated anywhere that this is our policies nor on the meta and calling it plagiarize is just not right especially when someone just trying to answer the question without reading the answers could get accused for no reason.