the stars go GLAM playin' DRESS UP ...

Hayden Panettiere as Amelia Earnhart ... one word - Classic!

Chanel Iman as Althea Gibson ... serv'd it up well lil muffin!

Emma Roberts as Audrey Hepburn ... She rock'd the pose so effortlessly!

Alicia Keys as First Lady Michelle Obama ... For real? Where's Kerry Washington when you need her? I'm just sayin'.

Lindsay Lohan as Madonna ... very believable Lindsay!!!

Paula Patton as Billie Holiday ... not a total Betty, but a vast improvement. [I still think my girl Chrisette would've killed!]

Glamour Magazine celebrates its 70th Anniversary with the likes of history's most influential women played by some of today's remarkable celebrities. From First Lady Michelle Obama to Billie Holiday and Madonna to Althea Gibson, these women really dig into character and pull out the true essence within or do they?

U be the judge ... Glamour's 70th Anniversary Issue hits stands March 11, make sure you get your copy!