'Duck Dynasty' Star John Luke Robertson Marries Mary Kate McEacharn

The 19-year-old star tied the knot on Saturday.

"It was one of the best days of my life! It was everything I hoped it would be and more," McEacharn told US Weekly about tying the knot.

McEacharn added a picture of her and her new husband.

"Well....WE GOT MARRIED! Thank you to everyone for the love and support and thank you to God for the absolutely perfect weather. Love my new husband and love being Mrs. Mary Kate Robertson. Let the adventure begin," she wrote.

US Weekly adds that more than 800 friends and family celebrated the big day with the happy couple and that a local band played hits like "Sweet Caroline" and "Amazing Grace."

Robertson popped the question last October on his 19th birthday.

"Happy Birthday to the boy I'm going to marry," McEacharn wrote on Instagram at the time.