Even though the Beatles no longer exist as a group, their music lives on. I have always used Beatles' songs in my Cambridge classes. Happily, this spring I had two students who were big fans, so they were great supporters of song clozes in the classroom.
Students: If you want to know about the history of the Beatles before you sing, look at the above link and print out the song cloze sheet below.
Teachers: If you want to make this into a full lesson rather than use it only as a warm-up or cool-down activity in class, you can preface or follow up the song activity with reading, discussion, and vocabulary-building.
Here is the song cloze sheet. Try to fill in the blanks by listening a few times to the following video. Double-check the words you chose to fill in the blanks with these song lyrics. Finally, sing along with the YouTube video of 'When I'm 64'. I guarantee you'll enjoy learning to listen, read, and pronounce English this way.