2013 Katy Perry hit whose music video features a tiger (4)
I believe the answer is:
roar
(Other definitions for roar that I've seen before include "The __ of the Greasepaint -- The Smell of the Crowd (1964 musical)" , "Lion's cry" , "Cry (as a lion)" , "Jaguar, for example, emits this" , "Make a loud noise" .)