While those are great birthday party ideas, our roundup of the best 21st birthday party ideas shows ... prizes for the ...

The year was 2002, and Paris Hilton turned 21 in a dazzling, barely-there Julien Macdonald mini dress, complete with a ...

Sydney Thomas/Instagram Sydney Thomas celebrated her 21st birthday as most people should ... including a sizzling black dress, a floral eye-popping top, and a see-through long sleeve shirt.

The dress's Y2k, of-the-moment splendor has since been the thing of modern fashion lore, leaving numerous copycat sheaths in its wake. "I would wear my 21st birthday dress," Kathy Hilton's ...