black and white dress calvin klein & Rhinestone 38 3/4 length Back zip closure Sleeveless 92% polyester Calvin Klein Asymmetric Bow Sheath

Length considerations are important too, as shorter dresses are generally more practical for running, though creative interpretations are welcomed - from tutus and red shirts with "dress" written on them to formal gowns, anything goes in this celebration of creativity and community spirit

At the Variety event Sweeney said she knew what it was like to be underestimated

( A-Rod later posted a video of Jennifer practicing her pole-dancing skills, so safe to say she's taking her preparation for the role very seriously.) J.Lo pretty much serves up the best inspiration: Jennifer also works out like a champ

The type of collar on the dress shirt will also determine the knot to use, as certain knots work better with certain collar types