The Chipmunks went all in on Sludge, changing their band name to Chipmunks on 16-Speed to differentiate their new darker material from their old kid friendly stuff. Alvin is now Alice after transitioning from male to female and is also a user of weed, shrooms, LSD, and allegedly has done literally all the drugs, Theodore is a non-binary pothead, and Simon is seemingly straightedge and well-adjusted, but he's super chipcestuous for Alice and is still her self-appointed wrangler who simply makes sure she does Alice things safely. Alice's outrageous antics on stage and in the public eye, as well as her period of semi-reclusiveness before transitioning, has made her the subject of controversy, bizarre stories, and conspiracy theories. She often plays into them because she finds it funny and/or cool.

The Chipettes got normal jobs but still sometimes collaborate with the Seville siblings. Brittany is a fitness instructor, Eleanor is a chef, and Jeanette is a librarian and a member of the Communist Party of America.