"Call Me No.1" by Underworld is a song that delves into themes of love and power dynamics within a relationship. The lyrics recount a time when the protagonist was deeply in love with someone, fighting for their attention and affection. They compare themselves to a dog, showcasing their unwavering loyalty and willingness to be the target of their love interest's affection. However, as the song progresses, it becomes clear that the protagonist realizes their worth and refuses to be taken for granted. They acknowledge that their soul is not for sale and that their love interest tried to take it from them. The lines "But my soul was not for sale, and you tried to take it from me" symbolize the love interest's attempts to control and manipulate the protagonist. The chorus, which repeats the phrase "Call me number one, head man here, the original son, baby, hey, hey, baby!" reflects the protagonist's newfound strength and confidence. They assert their position as the top priority, urging the love interest to recognize their importance. The phrase "number one" signifies their desire to be valued and treated with respect. Overall, "Call Me No.1" explores the power dynamics and struggles within relationships, emphasizing the need for mutual respect and appreciation. It tells the story of an individual who learns to assert their worth and refuse to be taken advantage of, ultimately demanding to be regarded as number one in the relationship.