The remaining members of the Beatles are a bit elderly now, so they'd be perfect for a Viagra ad! So how about a new version of the song: "A Hard Day's Night", with some new lyrics to help shill for Viagra? Here's what the new lyrics might be like:
I've been hard all day and night,
I've been big and stiff like a log,
I've been hard all day and night,
And I've been in heat like a dog,
And when you get horny too,
Just take the pill that is blue,
And you will be stiff all night.