I like lots of genres and artists. But one that most people don't seem to care for is better-quality songs from Anime.
Here's
Brothers from
Fullmetal Alchemist. The original is sung in Russian, but this cover is in English.
In a parallel timeline, two young brothers live is what is our Europe. While they are quite young their father mysteriously leaves. A while later, their mother dies leaving them "orphaned." But the brothers have become quite good at the science of Alchemy, a real thing in their timeline.
In 1910 they commit a taboo, human transmutation, attempting to resurrect their mother. This costs Edward his right arm, and costs Alphonse his entire body. But rather than losing Al too, Ed performs a transmutation sacrificing his left leg to bind Al's soul to a nearby suit of armor.
This song has Ed calling out to Al in apology, and Al responding.
Long story, but in the end they reunite with their father, finally understanding why he had to leave. Alphonse does get his body back, though at a price.
In one version of the story, at the end Edward has married childhood sweetheart Winry Rockbell and they have kids. In the other version Edward crosses over into our timeline, and with his father there works with and then fights against Nazis from within.
Here is another, in Japanese. It's from
Asobi ni Iku Yo!, literally "Let's Go Play!" However for the English dub's DVD release it was retitled "Cat Planet Cuties!" This is a music video for the song, featuring the singers.