The song "Next Up" by Lil Bibby and Lil Herb is about their rise to success in the music industry and their confidence in their abilities. They proclaim that they are the next big thing and that people know they are the ones to watch out for. The lyrics talk about their talent, determination, and ambition to make it to the top. Lil Bibby starts off by saying that he is better than the rest and even though he is young, he raps like a veteran. He claims to be the best and flexes his success, as he has never had much before. He believes that he is next in line for greatness and that everyone knows it. Lil Herb follows with a boastful verse, stating that he has already taken off and is beyond being next up. He talks about his ability to attract women and make money. He also mentions how he can easily handle any competition and that he is respected in his neighborhood. He emphasizes his determination to provide for his family and protect his crew. Overall, the song is about Lil Bibby and Lil Herb's confidence in their abilities, their ongoing success, and their ambition to be at the top of the rap game. They both believe that they are the next big thing and that they will continue to rise to the highest level in the industry.