Imagine having your hair stolen from your own head.
It may sound crazy, but it's happening to a bunch of women in South America.
Thieves in Venezuela and Colombia are sneaking up behind women with long hair cutting it off with scissors and running away.
Police say the thieves sell the human hair to beauty shops for lots of money.
In those countries, synthetic hair costs between $40 and $160.
Human hair can go for over $500.