Justin Timberlake is credited as a writer and a producer on his comeback single "Selfish." The song sees Timberlake admit that he often feels possessive about Jessica Biel because he knows he has found a gem of a person and doesn't want to lose her. However, Timberlake doesn't wear his jealousy like a crown and acknowledges that it's not a positive trait, despite feeling powerless in the face of it because of how much he loves Biel. He sings, "So if I get jealous, I can't help it. I want every bit of you. I guess I'm selfish. It's bad for my mental, but I can't fight it."
The "Suit & Tie" singer praises Biel's mother for bringing an angel like his wife into this world. Timberlake knows that if any other man saw how wonderful she was, he would try to steal her in a heartbeat, and the thought exacerbates his envy. He admits that he feels a shred of disappointment whenever he realizes that someone other than her is ringing him because he always wants to pour his heart out to her.
In the bridge, Timberlake expresses how much he loves Biel — "Owner of my heart. Tattooed your mark. There for the whole world to see." He adds that he has shared so much of his hurt with her that she has gained ownership over his hardships as well. Ultimately, Timberlake is happy that he shares such a deep love with Biel that it drives him crazy.
