Watch One Direction's Liam Payne Learn Sadie Robertson's 'DWTS' Quack Attack Dance

Watch One Direction's Liam Payne Learn Sadie Robertson's 'DWTS' Quack Attack Dance, Sadie Robertson is seriously living a teen dream. The 17-year-old Duck Dynasty star and Dancing With the Stars finalist got the surprise of her life when a famous fan turned up at her DWTS rehearsals. So, who was it? Let's just say this girl is going in the right direction!

Singer Liam Payne stopped by to wish Robertson and her pro partner Mark Ballas good luck. The One Direction heartthrob, who was in town for Sunday's American Music Awards, declared himself an official member of the Dancing duo's fan club, the Quack Pack. He also gave Robertson props for making it so far in the competition, admitting that he and his band mates have trouble in the dancing department. Still, Robertson gave him the lowdown on her team's signature move, the "Quack Attack."

Robertson was apparently pretty excited when Payne showed up out of the blue ("shocked and gushing" are two words that described her reaction), and maybe that's because this meeting was a long time coming. The teen missed out on a chance to meet the superstar singer in September when he visited her family in Louisiana during a pit stop on the 1D tour. Payne shot clay pigeons with Sadie's dad Willie, and her Uncle Si, but she was busy in L.A. — shooting Dancing With the Stars.