Many first-time mothers spend hours at the gym trying to work off their post-baby excess weight in an effort to recapture their once svelte physique.

For Beyonce, whatever magic she employed appears to have worked as she stepped out at New York’s Carnegie Hall last night (February 6th) for the first time since the birth of her daughter Blue one month ago.

The singer looked radiant in a figure-hugging red dress with a v-neck collar, gold clutch handbag, thick gold bracelets and large gold hoop earrings.

Her long locks were straight and smooth as they cascaded down her shoulders, while her feet rested in sparkling closed-toe heels.

The former Destiny’s Child front woman was out to support her husband, rapper Jay-Z, as he delivered a charity performance in aid of his Shawn Carter Foundation and United Way of New York City.

The rapper made a shout out to his daughter Blue Ivy during the performance, with the tot celebrating being one month old today.

07-02-12 1 Beyonce debuts post-baby body