To culminate a spectacular year, Pippa Middleton will celebrate the end of 2011 by throwing what will surely be one of the most fabulous New Year's Eve parties around.

The professional party planner will show off her skills with an end-of-the-year bash at her family's mansion. She has even rented out an entire hotel near her parents' home in Bucklebury, southern England, for the overspill of guests, reports The Sun.

The 28-year-old decided to throw the fete for friends and family who have been by her side through what was quite a whirlwind year. She's gone from being largely unknown to one of the most recognized women in the world, so she decided to hold a big party to thank everyone, a source said.

This event is a pivotal for Pippa whose career is based on party-planning. But, friends assure that Pippa will pass with flying colors. [She] works hard and is a real London career girl. She does the PR for Table Talk and has a very easy-going manner. I think the Middletons' work ethic is deeply ingrained. Pippa is quite ambitious, a friend of the Middleton sister told Tatler.

Pippa became a household name when she first sauntered down the aisle at sister Kate's wedding to Prince William in April. Many ogled at her shapely bottom in the curve-hugging Alexander McQueen gown, earning her the nickname Her Royal Hotness.

Ever since then, Pippa has been a magnet for the camera lenses and the headlines. Everyone wants to know who she is wearing, who she is dating and where she hangs out. She is the toast of the town.

Despite all of the fawning, Life & Style magazine is reporting that Pippa considers herself undateable. Pippa is scared she'll never find someone who'll be able to accept her life, the friend tells Life & Style. The men Pippa knows are all majorly turned off by the circus surrounding her.

Whether or not this is true, Pippa's success is skyrocketing. Her professional life has never been better. This year, Middleton even secured herself a $616,000 advance for a book about party planning and hostessing. It will very likely be a best-seller, as everything Pippa touches seems to turn to gold. The Modalu handbag, dubbed The Pippa, flew off the shelves after the brunette beauty was photographed carrying it.

Two guests who will not be in attendance at Pippa's NYE bash include Kate and William. The newlyweds will be spending the holiday quietly at Balmoral Castle in Scotland.