We all know about Gwen Stefani’s funky LAMB line and Beyonce's glitzy House of Dereon collection, so we decided to take a look at the latest round of celebrities who have thrown their hats into the design world.

First, there are the sister acts – Mary Kate and Ashley Olsen’s two new lines – the upscale The Row and the younger Elizabeth and James, Penelope and Monica Cruz’s line for Mango and, of course, the much hyped Twenty8Twelve from Sienna and Savannah Miller.

Ashlee Simpson and Pete Wentz are set to receive $2 million for pictures of their newborn baby.

The married couple - who welcomed their first child together, Bronx Mowgli Wentz, into the world last week - could receive the staggering amount for the first exclusive shots of their son.

Pete Wentz and wife Ashlee Simpson named their son Bronx Mowgli in tribute to "The Jungle Book."

The Fall Out Boy rocker - who welcomed his first child with Ashlee into the world last week - has revealed the couple are huge fans of Rudyard Kipling's novel, which tells the story of a young boy called Mowgli who grows up in the jungle and is raised by animals.

Jessica Simpson says her nephew Bronx Mowgli is "beyond precious." The "Come On Over" singer - whose sister Ashlee gave birth to Bronx, her first child with husband Pete Wentz, last week - is thrilled with the new addition to the family.

She said: "Bronx is beyond precious. I'm over the moon with joy. Life is a beautiful miracle. Ashlee and Pete are healthy, happy, and enjoying every moment."

Ashlee Simpson and Pete Wentz welcomed their first child together into the world Thursday evening.

The 24-year-old singer - who married Pete, 29, in May - gave birth to 7lb 11oz son Bronx Mowgli late Thursday night at Los Angeles' Cedars-Sinai Medical Center, a representative for the couple has confirmed.

Ashlee Simpson has been trying "different foot massages" to induce labor. The 24-year-old pop star - who is expecting her first child with husband Pete Wentz - is so desperate to give birth she has been testing out a variety of treatments which are said to bring on the labor process.

Ashlee's sister Jessica told U.S. TV talk show host Ellen DeGeneres Monday: "She has been trying different foot massages and stuff. I don't know. I think she's really just jumping around trying everything right now."