It wasn’t only Blake Lively who was celebrating a birthday this week, our own Alexandra Burke turned 21 in style.

She had dinner at Nobu Berkeley in Mayfair, before moving on to private members’ club Shoreditch House.

The X Factor winner wore a black silk Stella McCartney top with perforated black leggings from the Fall 2009 collection, paired with Maroon patent Christian Louboutin Décolleté 100 Jazz pumps.

The Chanel quilted clutch was apparently a birthday gift from Simon Cowell. He sure knows how to spoil a lady.

Alexandra party was also a listen party as she treated her friends to the first play of her debut single “Bad Boys”.

These leggings can be purchased from Stella McCartney boutiques and Neiman Marcus for $895.

Credit: Style.com & Wenn