Kelly Osbourne is reportedly set to be unveiled as the new face of Madonna's Material Girl clothing line.

The Fashion Police presenter will take over the role from Gossip Girl star Taylor Momsen after the brand recently launched an appeal on its website, asking fans to choose their preferred celebrity ambassador for the label.

"Kelly's always been a massive fan of Madonna and recently heard Lourdes idolized her, which she was very flattered by. It's a huge coup," said a close friend of Kelly's.

The new appointment could help to heal a rift between Madonna, 52, and Kelly's mother, presenter and rock manager Sharon Osbourne, who is renowned for her sharp tongue. "She is full of s**t. I would like to punch her. She's a tart," Sharon said of Madonna in 2005.

A source, however, revealed Sharon will support Kelly if she does take on the modeling gig: "Sharon and Kelly are very, very close and she will support her daughter with all her heart, like she does all her children. If Kelly ends up modeling for Material Girl, it will be great."