Duck Dynasty Rebecca, Uncle Si, Willie, Korie Robertson's Busy Holiday Season

Nov 18, 2014 04:38 PM EST

Duck Dynasty
Korie, Rebecca, Sadie, Willie and Bella Robertson (PHOTO: DUCK & DRESSING/FILE)

It's a busy holiday season for "Duck Dynasty" stars Uncle Si, Willie, Korie and daughter Rebecca Robertson .

Earlier this week, Silas "Uncle Si" Robertson promoted his newest book, "Uncle Si the Christmas Elf: Work Hard, Nap Hard" by taking a shot at Star Wars via Twitter

"Sorry #DarthVader We have 1 true Father!" Uncle Si tweeted. "Our book/doll set celebrates Him sending His Son 4 us elfentertainment.selz.com."

In the book, which comes with an elf in Uncle Si's image, Uncle Si plays the part of an elf in order to help Santa Claus to save one little boy's Christmas, and shows him the true meaning of the holiday. The set is recommended for children ages 4-8 years old, and has a retail price of $29.99.

Meanwhile, Phil's son and daughter-in-law, Willie and Korie Robertson, are enjoying watching their daughter, Sadie, show off her impressive dance skills on the hit TV show "Dancing With The Stars."

"I definitely got overwhelmed there," Willie said of watching his 17 year old daughter take the dance floor. "There was a tear or two."

After Sadie made the finals last night, Willie and Korie couldn't contain their excitement.

"She made it to the finals!! #oneproudmama!" Korie tweeted.

"Just when I thought she topped it, she topped it again. So proud of @sadierob," tweeted Willie.

The couple has also kept busy by participating in the making of the upcoming "Duck Dynasty." The musical, which will premiere in February 2015, is based on Willie and Korie's book, 'The Duck Commander Family: How Faith, Family and Ducks Built a Dynasty."

Willie and Korie's oldest daughter, Rebecca, also praised Sadie, posting a cute photo with her sister on Instagram.

"So proud of @legitsadierob everyone don't forget to vote if you want to see #thequackpack in the final!" she wrote.

Before Rebecca was adopted to the Robertson family, she was Willie and Korie's foster daughter having originally lived with the family as a foreign exchange student from Taiwan. The 24 year old joined the "Duck Dynasty" show for season 5 earlier this year.

Last year, Korie and Rebecca launched a clothing boutique called "Duck and Dressing," which recently celebrated its one year anniversary.

"I can't believe it's been ONE YEAR! Thank you everyone so much for standing by us and supporting us!" tweeted Rebecca, adding that the store will have sales this holiday season in honor of Christ's birth.

Duck Dynasty is the highest-rated reality-TV program in cable history. In the summer 2014 season, the show came in No. 1 every week, beating all other cable-TV shows in its time-slot.

The show has been renewed for another season, and the 5th season premiere show will air on Nov. 19.