"Rollin" by Calvin Harris is a song featuring Khalid and Future. The song explores themes of frustration, introspection, and letting go of negative relationships. In the lyrics, Khalid expresses his feelings of being overwhelmed and the effects it has on his ability to drive safely. He mentions having anger in his chest and millions on his mind, indicating the weight and stress he carries. He realizes that the person he is referring to in the song doesn't fit into his life anymore, implying that they were not the right fit. Future's verses add a different perspective to the song, focusing on fame, excess, and his own personal struggles. He talks about his lavish lifestyle and the temptations that come with it. He mentions using drugs and interacting with various women but acknowledges that he may be seen as a monster for his actions. Throughout the song, there is a sense of detachment and a desire for freedom from burdensome relationships and pressures. Both Khalid and Future express their frustrations and find solace in their own ways. Overall, "Rollin" explores the complexities of relationships, fame, and personal struggles, highlighting the need for self-expression and finding one's own path.