Duck Dynasty star John Luke Robertson has gotten engaged at the young age of 19.

John Luke, the grandson of family patriarch Phil Robertson and eldest son of Korie Robertson and Willie Robertson's five children, proposed to his girlfriend Mary Kate McEacharn on Saturday and she accepted, E! News reported.

"I am so excited to marry my best friend," John Luke told E! News in a Sunday statement.

"I know my parents married young as well, and they have always been examples of what 'could be' to me. Fast-forward 22 years and they are more in love than ever, and I hope Mary Kate and I are the same way in the years to come. God has truly blessed us."

John Luke reportedly popped the question to Mary Kate during his own birthday party thrown by his family.

Mary Kate posted a photo on Instagram over the weekend, showing off her new ring while her fiance held up a sign that read "Future Mrs. Robertson."

"Happy Birthday to the boy I'm going to marry," Mary Kate captioned the image, which John Luke also shared on Instagram to tell the world she said "yes."

Korie also expressed her support on Twitter, congratulating the young couple.

"Yes, it's true @John316Luke923 proposed to this beauty @MaryKateMcE last night!" the reality TV star tweeted. "We couldn't be more excited!! #love."

John Luke and Mary Kate both attended Ouachita Christian School in Monroe, LA, according to E! News, and they began dating in March. The pair reportedly traveled abroad together and Mary Kate is still in school.

John Luke is the older brother of Sadie Robertson, 17, who is currently competing on Dancing with the Stars' nineteenth season with professional dance partner Mark Ballas.