Has ''Who Let the Dogs Out" or "Macho, Macho Man" or even "I got soul, but I'm not a soldier" been running through your head all day, and now you want it gone? Here are some steps to follow to rid your head of these annoying tunes.

Steps

Turn down the mental volume of the song until it is sung in a whisper.
Think about a song that you do like, and one that you enjoy singing. Any time the annoying song pops into your head, start singing or humming the better song.
Concentrate your thoughts on something else. Try a riddle, mental math, or reciting a poem.
Get involved in physical exercise.
Shout in your head.
Go someplace where no one will hear you, and shout out loud. If such a place is unavailable, just talk to someone.
Listen to a song without vocals.
Become addicted to another tune, one whose lyrics you don't mind hearing over and over again.
Sing or play the song through in its entirety. Usually when your brain hears the end of the song, it completes the repetition and is able to release the song that had been stuck.
When you get to the end of the song and are done with it, sing the last note (aloud or in your head), then let the pitch drop, like it's going down a slide, until you're on a much lower note than the one on which the song ended. This will help keep the song from starting over again.

Tips

Avoid repetitive tunes, as they get stuck in your mind very easily. If you are prone to experiencing this problem, run far away when you hear these types of songs start to play.
Stay calm. Music isn't a bad thing.

Adapted from wikihow.com.