Is the music used to make YouTube videos copyrighted?

When I make YouTube videos, there are many cases where I write famous songs as background music.

Is it copyrighted to write background music like this?

713 2017-04-14 Gentleman

popular What are the side effects of oats?

popular How do I recycle and recycle foil like cooking foil?

popular Can I listen to music with Bluetooth earphones on the plane?

popular How can I resolve TLS security configuration errors?

popular Why does it say that your license has expired on your phone?

Same Tag Please tell me a YouTube video that's good for beginners to learn without makeup

Same Tag Please recommend a YouTube channel for stretching your trapezius muscles

Same Tag Whose do you watch when you want to eat?

Same Tag Recommend how to use a curling iron.youtube

Same Tag What's wrong with YouTube freezing?

Same Time The application is sometimes forced to shut down. Why is that?

Same Time Is the music used to make YouTube videos copyrighted?

Same Time Is it good to put it in several places when putting it up for sale in real estate?