I'm sure I'm not the only reviewer who, when writing anything about The Beatles, starts hearing John Lennon sing, "There's nothing you can do that can't be done," or "There's nothing you can know that isn't known." I suspect most reviewers think of those "All You Need Is Love" lyrics when realizing that about one billion others wrote about the band before they did.
That realization shouldn't stop any of us from writing about The Beatles, however. When a band is that deservedly renowned, a music blog is incomplete without at least an occasional mention of it. Besides, even if you were thinking about The Beatles recently, maybe you weren't thinking about "You Never Give Me Your Money" on the day I wrote about it but were moved to listen to it.
I highlight a lot of obscure artists on this blog, hoping that readers will seek out their music. Sometimes, however, it's fitting to acknowledge the influence of a band or artist that's justifiably popular--even when you're the one billionth person to do so.