It’s a Mimi Plange fashion faceoff between Kat Graham and Amber Lancaster.

Kat of The Vampire Diaries fame first wore her strapless black bustier mini with Elephant Hearts earrings and Loriblu polka dot heels to Have a Heart For Children charitable event while MTV’s Amber wore hers to the Us Weekly Hot Hollywood bash last night.

The silk faille dress called “Adette” was taken from Mimi Plange Spring/Summer 2010 collection.