The song "That's Mine" by Justin Stone revolves around the theme of possessiveness and claiming ownership of someone or something. In the opening lines, the lyrics question what the protagonist, referred to as "Superstaar," has created, indicating some sort of impact on the narrator's life. The main focus of the song is a girl that the protagonist desires and considers to be his. He emphasizes that if he had her once, she would be his forever. He warns others not to touch or interfere with his claim, implying a possessive and protective nature. The lyrics suggest that the protagonist is confident in his abilities to attract women and has had his fair share of encounters. He doesn't necessarily need the girl's physical appearance, as he values her loyalty and authenticity. He portrays himself as a mix of a nice guy and an asshole, unapologetically upfront about his personality. The protagonist takes pride in being a player, suggesting that he easily attracts women and has control over his romantic interactions. The lyrics also touch upon the concept of double standards, indicating that the protagonist is aware of his actions and their potential consequences. He acknowledges that he has been cold towards others but expects grace from women. The line "I let her go bye, bye" suggests that he may end relationships abruptly or without a second thought. The song then addresses the protagonist's rise to success and the success he has achieved despite being disregarded by critics and past relationships. He attributes his progress to payback for those who treated him poorly before. He takes satisfaction in proving others wrong and highlights his growth and accomplishments. Throughout the song, the lyrics convey a sense of self-assertion and determination. The protagonist holds a possessive attitude towards the girl he desires and prides himself on his ability to attract women. The song also explores themes of confidence, double standards, and resilience in the face of critics and obstacles.