Winehouse uses her retro image to position herself in a roll call of female singing icons dating back to Diana Ross and beyond, and distance herself from the world of contemporary throwaway pop Photograph: Kevork Djansezian/AP
Winehouse channels the Supremes' beehives and the beestung lips, the doll-like get-ups and the larger-than-life voices Photograph: Getty
It seems that someone at A&M (Duffy's record label) saw an aesthetic opportunity and grabbed it. You can see their thinking - "Duffy looks a bit like Bardot doesn't she? Right, let's crack open the industrial-strength mascara" Photograph: PR
For both, the fitted but demure black knitwear provides an excellent contrast to their kittenish hair, heavily made-up "bare" complexion and nude lips Photograph: PR
It is slightly unfair to lay the Patti Smith copyist charge squarely at Ms "Cat Power" Marshall's door as she certainly isn't alone. But it is Cat Power's heavy fringe that lays her stylistic influences raw Photograph: PR
Here, Smith is pictured wearing a cluster of rings on her bony fingers, which are meant to signify female strength rather than prescient Waggery. Similarly, Power is also a fan of chunky forefinger rings and Smithesque leather wrist ties Photograph: Lynn Goldsmith/Corbis
The degree to which Beyoncé emulates Tina Turner can be seen in a shared trademark dance move: a girlish kick up of the back heel, as theatrically feminine as anything off Strictly Come Dancing, but which packs a punch when executed by iron-tough thighs which could kill a man Photograph: Frank Micelotta/Getty
Tina Turner once explained that she wore very short dresses on stage because "I don't want to worry about clothes tripping me." A happy side effect of this admirably practical approach was that her awe-inspiring thigh musculature became a central part of her look Photograph: Michael Ochs Archives/Getty
Unlike Oasis, whose entire career appears to have been dedicated to the Beatles, the only thing Arctic Monkey Alex Turner has borrowed from the Fab Four is his current fancy for a polo neck with jacket combination Photograph: Eamonn and James Clarke/PA
The Beatles' bowlish, fringey hair-dos are also much emulated by today's indie kids Photograph: Pierluigi Praturlon/Rex Features