Rachel Zoe has given birth to a baby boy.

The stylist-to-the-stars and her husband Roger Berman have welcomed their second child into the world, she announced on Sunday (22.12.13).

She confirmed the news on Twitter, writing: ''So excited to welcome our baby boy into the world...he's 7 lbs 12 oz, beautiful, healthy and we couldn't be happier.''

The couple, who married in 1996, already have two-year-old son Skyler, who Rachel previously admitted was struggling to adjust to the idea of having a sibling.

The designer has been showered with gifts from her famous friends, including model Molly Sims who gave her a hamsa amulet, which is said to protect women from the 'evil eye' and boost fertility and lactation.

She tweeted last Friday (20.12.13): ''Thanks u to my beautiful @mollybsims for the gorgeous hamsa, I couldn't love it more!! Love u!! XoRZ (sic)''.

Rumours that 'The Rachel Zoe Project' star was pregnant began circulating in June, with the outspoken fashionista confirming the claims in a blog post this September.

She enthused: ''We are beyond excited for Skyler to have a sibling and for us to fall in love all over again. We feel incredibly blessed.''

There is no doubt Rachel's newborn son will be one of Hollywood's most stylish tots since she has dressed everyone from Jennifer Lawrence to Miley Cyrus.