Showbiz: I Wrote the Music and Lyrics, and You Call Yourself the Original Singer?

Su Tian transmigrates to Blue Star and discovers he has no golden finger. He can only rely on his own efforts, rising step by step from a small-town exam ace to a master's degree in bar dance. Later, thanks to his own... talent, he becomes one of Huaguo's top composers and lyricists and starts his own company.

Su Tian thinks he'll spend the rest of his uneventful, plain, and boring life quietly watching the cold one hundred million in his bank account.

Until one day...

System: Host, this Entrepreneurship System will help you go from a penniless young man to a billionaire!

Su Tian looks at the first task and pauses.

"The Host has been found to have musical talent. Please use your musical talent to earn the first pot of gold in your life: ten thousand yuan!"

In silence, Su Tian uploads a new song that he wrote, composed, and performed himself, wanting to test the System's limits.

Then he falls silent again.

How come someone else is listed as the original singer of a song he wrote himself?