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					Originally posted by  Nialler
					 
				 
				how would you know that? 
  
			
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 Katy herself said LL was going to be released this year.
And WOA was well received(like DH) and it wasn't a normal single for her. Katy freaking loves that song and she wanted it to be her "gay anthem"
if you will. The whole eras purpose was to make smashes(no one expected TD again though) but at different approaches and influences from each single. 
Unconditionally - Ballad/ serious approach
Walking on Air - Dance pop
Dark Horse - trap-influenced 
Roar - classic Katy, instant anthemic smash
Legendary Lovers - the India/spicy vibe 
But it's all speculation at this point, all we do know is Katy has to approve every release and this era did not play out the way she thought it would.