Stop what you're doing. I think I've finally found it. After years of searching and hoping... I have found the perfect Little Black Dress. Honestly, I am so in love with this dress. It's the perfect material and weight and would flatter everyone (hello A-line!). Basically it's just the perfect LBD. I could see wearing it in any season or event as well. It can be dressed up or dressed down; it'd be great with booties in fall and sandals in spring. I have also linked to some more LBD's below as well if this one's not your cup of tea (or if you just want more than one!).
Dress/ BCBGeneration
Necklace / Zara (similar here and here)
Shoes / Aldo (similar here)
Purse / Kate Spade