Def Leppard cover 'Stand by Me' by Ben E. King with proceeds benefitting the Los Angeles wildfire relief fund through FireAid.

Billie Eilish and Finneas performed acoustic renditions of "Wildflower," "The Greatest," and "Birds of a Feather" at FireAid.

So what do they say about one-hit wonders in general? Frankly, they say that as far as the music is concerned, the term only ...