The song "Best Part" by Joseph Solomon is a love ballad that talks about the deep love and appreciation the singer has for their lover. The lyrics express the feeling of being incomplete without their significant other. The singer compares their lover to the things that bring them joy, such as coffee in the morning, the sunshine in the rain, and Tylenol for a headache. The chorus of the song emphasizes the singer's admiration and devotion to their lover, highlighting them as the "best part" of their life and calling them a star. The verse also touches on intimacy, with the singer expressing their contentment and happiness when they make love. The song also touches on communication in a relationship, as the singer asks their lover to express their feelings if they love them. This shows that the singer values open communication and seeks reassurance from their partner. Overall, "Best Part" celebrates the beauty and importance of love and the special bond between two individuals.