Thanks for reaching out about this here in the Community and welcome.
If you've come across songs unexpectedly added to your 'Liked', it'd be good to make sure no one is accessing your account in an unauthorized way.
For this purpose, it'd be great to bookmark and follow the steps in this support page article as well as this one since they feature some essential info regarding how to keep the safety of your account up-to-date.
Hope you'll find this useful. We'll keep an eye on your reply in case there's anything else we can help with!
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