For Kourtney Kardashian's 31st Birthday Celebration in Las Vegas, Holly Madison incorporated two of Spring's hottest trends, white and red, with this flowered number by Betsey Johnson. Betsy's Skulls-N-Roses Silk Halter Dress retails for $348, but if you want this trend to by yours for a fraction of the cost, Forever 21's Pretty Floral Dress is a smart and stylish choice.

Betsey Johnson Skulls-N-Roses Silk Halter Dress: $348

Forever 21 Pretty Floral Dress: $19.80