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well if you are black you can dress up as foxy brown or diana ross but if you are white you are out of luck. hope i helped

Have you seen 'That 70's show'? What the girls were wearing would definitely help you out.

But when i think of 70's im thinking:

flared jeans

floral

plaitted hair

70's pants(flares pants or bootcut jeans) and tank top. And platform boots. Or naked and say ur going to woodstock. Or charlies angels cuz they were originaly from the 70s

how about audrey hepburn? you could have a really cute outfit!!! she wore a lot of accessories and big necklaces and earings here's a link of pics of her:

http://www.google.com/search?hl=en&xhr=t&q=audrey+...

or you could do madonna i guess but she wasnt that famous at the time