You must to follow following steps to upload My Baby Dance Videos on movie songs on the monetized YouTube channel are :-
1. You must sign in to your YouTube account.
2.From the top right of screen select your account icon > Creator Studio.
3. In the left menu there is option select Channel > Status and features.
4.Then click under "Monetization," click Enable.
5.Then follow the on-screen steps to accept the YouTube Partner Program Terms.
6.Then sign up for AdSense.
7.Then set monetization preferences
8. click on confirm you want to monetize for all your existing and future videos.
9. Check the boxes under Ads formats to choose the types of ads you want to show and click Save.
10. Once your channel has 10,000 views youtube review your application to make sure your channel activity adheres to the YouTube Partner Program policies