We've been staring at this picture of Ashlee Simpson at the American Ballet Theatre Opening Night Spring Gala in New York this week all morning and it's official, we can't fault it. This is black dress perfection! The lace halterneck dress has one of the chicest necklines we've ever seen and with the luxurious full-length and decadent feather peplum this frock is 1920s luxe at its very best. Make like Ashlee (for just £75!) in our floor-sweeping black lace dress from Lipstick Boutique. Like Ashlee's evening gown it features a sophisticated high lace neck and will mould to your figure beautifully. This sexy number also has a sultry leg-split, perfect for showing off some statement high heels. Get Ashlee's look at LittleBlackDress.co.uk:  Brandts Pearl, Opal and Amazonite Bagatelle Drop Earrings, £59; Lipstick Boutique Alexia Dress in Black, £75; Moda in Pelle Instinct Black Patent Peep Toe Court Shoe, £69.95; Moda in Pelle Naddybag in Black, £65.95. Shop all long black dresses here.