The Small Faces never did make it big Stateside, but they were right up there with the Beatles, Stones, Kinks, Who, etc.
Of course, when Steve Marriott quit to form his own band, Humble Pie, they were at a complete loose end until Rod Stewart and Ronnie Wood showed up -- and they dropped the "Small", but that's a different story.
Here's one of their best tracks performed live on some long forgotten TV Show, and featuring the incomparable P.P. Arnold.