The song "Evil Twin" by Buddy Guy is about a person who suspects their partner of being unfaithful. The protagonist sees someone who looks like their partner with someone else, but their partner denies any involvement. The lyrics suggest that if the person their partner claims to have been with wasn't them, it must have been their evil twin. The song emphasizes the physical attributes of the partner, describing their pretty face and heart-shaped booty. Despite the partner's denial, the protagonist remains skeptical and believes that the person they saw must have been the partner's evil twin. The lyrics also mention the protagonist's familiarity with the partner's family, suggesting that they have been in a relationship for a while. They question who is fooling whom, implying that the partner's actions contradict their claims of innocence. The song concludes by affirming that if the person their partner insists wasn't them, it must have been their evil twin. Overall, "Evil Twin" portrays a situation where trust is being tested due to suspicions of infidelity. The protagonist struggles to believe their partner's denials and uses the concept of an evil twin as a metaphorical explanation for their actions.
