The whale tail, a very controversial trend from the early 2000s, found an ally in Katy Perry last night, who championed its return at the Billboard Women in Music awards.

The singer arrived at the event in a bright red look that contrasted the blue carpet. The fiery outfit by Ellie Misner was made up of a strapless corset top with a peplum detail, plus a low-rise skirt which began as a pencil skirt and then flared into a layered, voluminous train with gray fabric underneath.