The song "Lonely Heart" by Europa (Jax Jones & Martin Solveig) & GRACEY tells the story of a past relationship and the lingering emotions that come with it. The lyrics describe the experience of driving through a city at night and reminiscing about the warmth and connection the singer once shared with their former partner. The chorus asks if the person they used to be with can still hear and feel the pain in their heart. It expresses the longing for their ex to understand the impact their absence has had on them. The line "raindrops in the backseat of your car" symbolizes the intimate moments they shared and how everything felt complete when they were together. Despite the passage of time, the memories and feelings are still strong. The singer mentions trying to forget, but finding themselves constantly reminded of their former relationship. They are haunted by the loss and find themselves trapped in the past, unable to move on. The bridge of the song emphasizes the loneliness and the heartache that the singer still feels. It expresses that their heart beats for their ex and that they are unable to stop loving them, despite the pain it causes. Overall, "Lonely Heart" explores the feelings of longing, nostalgia, and heartbreak that come with a past love. It portrays the struggle of letting go and moving on from a relationship that meant a lot to the singer.