"Band4Band" is a collaboration between Central Cee, a British rapper, and Lil Baby, an American rapper. However, as of my last update in October 2023, there isn't a widely recognized or released track by these two artists with that specific title. It's possible that the song has been released after my last knowledge update, or it could be a track that hasn't gained significant attention by that time.

Both artists are known for their impactful lyrics and distinctive styles—Central Cee being a prominent figure in the UK drill scene, while Lil Baby has made a major name for himself in the U.S. trap and rap scenes. If this track is real, it could blend these two influential styles.

To get the most up-to-date information on the song, I recommend checking out platforms like Spotify, Apple Music, or social media channels for any announcements or releases after October 2023.