Now this is how to make an entrance a month after having a baby. Beyonce Knowles made a rare appearance at Carnegie Hall last night in support of husband Jay-Z, her first since giving birth to a baby girl named Blue Ivy Carter on January 7th. The sultry chanteuse looked scintillating in the Alice by Temperley Molina frock – a sexy ruched cocktail dress – that showed off all the right curves. With her signature blonde tresses bone straight, she looked flawless wearing black and crystal embellished Christian Louboutin pumps and an Alexander McQueen clutch. You go Bey!