1. Sing your heart out

    Breathe?
  2. Slow down my beating heart

    IALW?
  3. I'm no doctor, but you said that thing is not a heart, right?
  4. No as in "you're wrong, that thing is a heart"?
  5. Since we're repeating songs:
    Wild, you grow wild in my heart
    Flowerchild?
  6. And if your glass heart should crack

    walk on ?
  7. Now that could be so many things then...

    Heartland
  8. Deep In the heart
  9. Take this heart and make it break - Yahweh