Celine is the second biggest selling female artist, who can could easily still fill up stadiums around the world at any time. Not to mention her last album outsold her peers by a good margin. As much as I loathe her, she's hardly a non-factor. Adele will be remembered, even if she flops after this era. She's already outsold her peers and other singers from a generation before her. Her records will always keep her relevant.