By 1975, John Lennon was already one of the biggest music stars in the world, both for his work with The Beatles and as a solo artist. Lennon's own songs had garnered him plenty of acclaim, but for ...

"Free as a Bird" by The Beatles returns to the top 10 on a pair of sales lists in the U.K. as the decades-old tune becomes a surprise bestseller again.

Here are four famous classic-rock artists who released songs featuring lyrical references to their earlier tunes, including The Beatles and The Who.

These three covers are so classic, they feel as though they were written for the artist who merely borrowed them.