<Table> Key <Tr> <Td> </Td> <Td> Denotes acting credits </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> Denotes acting credits </Td> </Tr> <Table> <Tr> <Th> Year </Th> <Th> Title </Th> <Th> Role </Th> <Th> Network </Th> <Th> Notes </Th> <Th> Ref . </Th> </Tr> <Tr> <Td> </Td> <Td> Live to Dance </Td> <Td> Herself </Td> <Td> CBS </Td> <Td> Episode did not air </Td> <Td> </Td> </Tr> <Tr> <Td> 2011--2016 </Td> <Td> Dance Moms </Td> <Td> Herself </Td> <Td> Lifetime </Td> <Td> Main cast, 162 episodes </Td> <Td> </Td> </Tr> <Tr> <Td> 2012--2015 </Td> <Td> The View </Td> <Td> Herself / Performer </Td> <Td> ABC </Td> <Td> 3 episodes </Td> <Td> </Td> </Tr> <Tr> <Td> 2012 </Td> <Td> Drop Dead Diva </Td> <Td> Young Deb </Td> <Td> Lifetime </Td> <Td> Episode: "Lady Parts" </Td> <Td> </Td> </Tr> <Tr> <Td> 2013 </Td> <Td> Abby's Ultimate Dance Competition </Td> <Td> Herself </Td> <Td> 2 episodes </Td> <Td> </Td> </Tr> <Tr> <Td> 2014--2017 </Td> <Td> The Ellen DeGeneres Show </Td> <Td> Herself / Performer </Td> <Td> NBCUniversal </Td> <Td> 4 episodes (3 with Sia) </Td> <Td> </Td> </Tr> <Tr> <Td> 2014--2015 </Td> <Td> Dancing with the Stars </Td> <Td> Performer </Td> <Td> ABC </Td> <Td> Sia: "Chandelier", with Allison Holker (Season 19, Ep. 4) Josh Groban: "Somewhere Over the Rainbow" (Season 20, Ep. 9) </Td> <Td> </Td> </Tr> <Tr> <Td> 2014 </Td> <Td> Jimmy Kimmel Live! </Td> <Td> Herself, Dancer </Td> <Td> ABC </Td> <Td> Sia: "Chandelier"; Ziegler teaches hosts "Chandelier" dance (Season 12, Ep. 95) </Td> <Td> </Td> </Tr> <Tr> <Td> 2015 </Td> <Td> Saturday Night Live </Td> <Td> Performer </Td> <Td> NBC </Td> <Td> Sia: "Elastic Heart" (Season 40, Ep. 11) </Td> <Td> </Td> </Tr> <Tr> <Td> 57th Annual Grammy Awards </Td> <Td> CBS </Td> <Td> Sia: "Chandelier" with Kristen Wiig </Td> <Td> </Td> </Tr> <Tr> <Td> Austin & Ally </Td> <Td> Shelby Hayden </Td> <Td> Disney Channel </Td> <Td> Episode: "Homework and Hidden Talents" </Td> <Td> </Td> </Tr> <Tr> <Td> Pretty Little Liars </Td> <Td> Creepy Dancer </Td> <Td> ABC Family </Td> <Td> Episode: "She's No Angel" </Td> <Td> </Td> </Tr> <Tr> <Td> 2016--2017 </Td> <Td> Nicky, Ricky, Dicky & Dawn </Td> <Td> Eiffel </Td> <Td> Nickelodeon </Td> <Td> 2 episodes </Td> <Td> </Td> </Tr> <Tr> <Td> 2016 </Td> <Td> The Wonderful World of Disney: Disneyland 60 </Td> <Td> Performer </Td> <Td> ABC </Td> <Td> Kelsea Ballerini: "Part of Your World" </Td> <Td> </Td> </Tr> <Tr> <Td> The Voice </Td> <Td> Performer </Td> <Td> NBC </Td> <Td> Sia: "Cheap Thrills" (Season 10 finale) </Td> <Td> </Td> </Tr> <Tr> <Td> So You Think You Can Dance: The Next Generation </Td> <Td> Judge and guest dancer </Td> <Td> Fox </Td> <Td> 10 episodes, including 8 as a judge and 2 as a guest dancer </Td> <Td> </Td> </Tr> <Tr> <Td> 2016--2017 </Td> <Td> Harry </Td> <Td> Herself </Td> <Td> NBCUniversal Television Distribution </Td> <Td> 2 episodes </Td> <Td> </Td> </Tr> <Tr> <Td> 2017 </Td> <Td> Project Runway </Td> <Td> Guest judge </Td> <Td> Lifetime </Td> <Td> August 31 episode </Td> <Td> </Td> </Tr> </Table> <Tr> <Th> Year </Th> <Th> Title </Th> <Th> Role </Th> <Th> Network </Th> <Th> Notes </Th> <Th> Ref . </Th> </Tr>

Who was the dancing girl in pretty little liars
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