A sicko was busted posing online as a popular teen dancer — then coercing little girls to perform lewd acts on camera, according to a reports.

British perv Lewis Edwards, 18, convinced girls as young as 10 to touch themselves under the guise of a Facebook profile in the name of Madison Haschak — a 17-year-old American dancer with a big online following, the Daily Post Wales reports. 

“You created a false profile, put her pictures on it, and you persuaded young girls to engage in sexual activity,” the judge said, describing the case as the most disturbing he’d ever encountered with such a young offender.

Edwards pleaded guilty to the deviant acts — as well as searching for photos of babies being abused — dating back to 2014, and was sentenced to four years in youth detention.

Police found hundreds of indecent photos of minors on Edwards’ phone and Xbox — including the disturbing videos of young Haschak fans, the outlet reports.

In one video, a little girl cries and says, “I don’t want to do this,” but eventually relents because she thought it’s what her idol wanted.