On Monday, Apple gave over the entire front page of its website to tease an announcement scheduled for 10 a.m. Eastern Standard Time Tuesday, but gave few decipherable clues.
"Tomorrow is just another day. That you'll never forget," the message read.
EMI Group Ltd, the Beatles' record label, declined to comment. Apple also declined comment on the news, first reported by the Wall Street Journal.
The Beatles -- arguably the most famous band of all time -- have been the most prominent hold-out from the iTunes Store, the world's No. 1 music retailer, and rumors about an agreement with Apple have circulated for years.
The iTunes store has helped redefine music retailing since its launch in 2003. More than 10 billion songs have been downloaded from the site, which features a music catalog of more than 12 million titles. Apple has also branched into selling and renting movies and TV shows.