iPhone 5 How do I remove "don't miss a beat" from my music screen

Assuming this is some song you have downloaded to your iPhone or through your Apple ID, you can...

First, Delete music, movies, apps, and other content from your iPhone, iPad, or iPod touch - Apple Support

Delete the song.

Second, navigate to "My Music" tab in your Music app.

Tap where I have circled "Genres" [this may be listed as Artists, etc depending on your present organization setup]

Then toggle where it says "Only Downloaded Music"

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If you also want to go so far as to hide a purchase you have made in the iTunes Store, follow this article.

Hide and unhide iTunes Store, App Store, or iBooks Store purchases - Apple Support

This must be done from iTunes on a computer while logged into your account.