The Everly Brothers' song "Any Single Solitary Heart" is about the pain and struggles of love. The lyrics reflect on the protagonist's past experiences with love, acknowledging that they have been hurt before but have never fully closed themselves off to the possibility of love. However, this time, their heartache has been especially difficult and has made them consider giving up on love entirely. The song suggests that only those who have experienced loneliness and the heartbreak of letting go truly understand the pain involved. The protagonist advises the listener to seek advice from anyone who has been through a similar experience and ask them why love can fail, why the world can feel colder after a breakup, or where the pain of a teardrop begins. The lyrics emphasize that the stars, often associated with romance and love, cannot provide answers as they have never experienced love themselves. They serve as a reminder of the protagonist's previous happier relationship, contrasting with the current pain they feel. Throughout the song, the protagonist reflects on their lost confidence in the innocence and purity of love. They now have evidence that love can be unkind and hurtful, leading them to question its validity. In essence, "Any Single Solitary Heart" explores the struggles and doubts that can arise from love and the search for answers and understanding in the midst of heartbreak.