Howdy jackonly18,
Thanks for using the Apple Support Communities! I understand that songs may be appearing in your library yet you are not the one adding them. Let’s take a look and see what we can do. I'm happy to help!
Let's first check to see if you could be signed into another device with this resource that I gathered below:
Check your Apple ID device list to see where you're signed in
Please make sure you remove any devices that you don't recognize or are devices that you use.
Let's also check your purchase history for iTunes to see if those songs appear there.
See your purchase history for the App Store or iTunes Store
Specifically, "See your purchase history on your iPhone, iPad, or iPod touch"
- Open the Settings app.
- Tap your name, then tap iTunes & App Store.
- Tap your Apple ID, then tap View Apple ID. You might be asked to sign in.
- Scroll to Purchase History and tap it. If you want to see purchases that you made more than 90 days prior, tap Last 90 Days, then select a date range.
- Find the item, then tap Total Billed.
Please respond back if you continue to have any issues.
Best regards!