Beyonce Knowles has given birth to a baby girl. Beyonce Knowles and rapper husband JAY-Z have welcomed their first child together last night (7th Jan 2011), according to E! News.

The superstar couple went to Lenox Hill Hospital in New York where they reportedly paid $1.3 million in order to rent out the entire fourth floor of the hospital. Reports suggest that the 30-year-old singer checked into the hospital under a false name of Ingrid Jackson, whilst friends of the couple were spotted bringing food and bottles of red wine to the site in order to celebrate the birth. JAY-Z was by Beyonce's side throughout the whole procedure, finally leading up to the birth itself. According to E!, the couple decided to name the child Ivy Blue Carter. Following the birth, many stars publically supported the couple. Singer and friend to the couple Rihanna tweeted, 'Welcome to the world princess Carter! Love Aunty Rih (sic)' whilst music mogul Russell Simmons wrote: 'Congrats to my good friends Beyonce and Jay-Z (sic).'

Having spoken about her pregnancy last month, Beyonce said: 'It's exciting! I know it's gonna be difficult at times. I know that, like my mother, I'm gonna get on my child's nerves but I'm just ready! I'm ready for the next chapter.' The couple married in 2008 after having dated for six years. Beyonce had revealed that she was pregnant at the MTV Video Music Awards in August (2011).