The impressed panel of judges gave Pickler and her partner, Derek Hough, a high score of 26 points and commended the singer for her dancing abilities.
"For week two, last week was a spark. This is a fire. Well done," judge Len Goodman told the singer.
Pickler and Hough tied for the highest score of the night with fellow contestants Zendaya and her partner Val Chmerkovskiy.
Notable deaths of 2014 [PHOTOS]