Korean Entertainment: In This Lifetime

I hope to spend my life doing what I love, so that when I'm eighty, I can look back and smile without regrets. The female lead is reborn, but she doesn't know anything about celebrities or entertainers. The story runs from 2015 to the present. The writing and characterizations may not be to everyone's taste. A slow-burn growth story about Korean entertainers. All the female lead's lyrics were written by the author. The songs are wonderfully imagined and flawless, and the author isn't responsible for answering questions or criticism. The male lead is tentatively Kwon Ji-yong. He's enlisted, so some people may not know him. Things have been pretty chaotic lately, so I'd recommend listening to his music rather than following the news. He's very talented.