But can Alvin and the Chipmunks now net their biggest prize yet: a $300 million paycheck? The franchise is onsale for around that amount, sources with knowledge of the matter have told CNBC.

Youtuber ToonrificTariq argues why the chipmunks are so compelling — and why they went astray in the 1980s.

Alvin and the Chipmunks have been wreaking havoc for Dave Seville - and delighting audiences around the world - for nearly 50 years, in various incarnations.

Alvin and the Chipmunks have been wreaking havoc for Dave Seville - and delighting audiences around the world - for nearly 50 years, in various incarnations.