Taylor Swift and Beyonce show the lucrative pop-fashion liaison

The return of mega-concerts since the Covid-19 pandemic, with Beyonce and Taylor Swift leading the way, has highlighted the lucrative links between fashion brands and pop stars.

Stage costumes have long been a way for designers to gain massive exposure -- think of Madonna's conical breasts that helped make French designer Jean Paul Gaultier a household name in the early 1990s.

From Edith Piaf's little black dress through Elton John's whacky glasses to David Bowie's many elaborate fashion...