These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: The Yardbirds
Covered Up: Possibly their version of Howlin' Wolf's "Smokestack Lightning"; it certainly became strongly associated enough with them that other bands in the London scene eventually stopped playing it.
Aerosmith's 1974 cover of "Train Kept A-Rollin'", itself a rockabilly cover, might be better known than the Yardbirds' version.
Face of the Band: They're probably best known today for having three of rock's most highly regarded guitarists in their line-up at one point or another, but back then Keith Relf was the real face.