Miley Cyrus has earned the title of Worst Celebrity Influence of 2010 ... two years in a row!

In a poll by JSYK.com, Miley scored 58% of close to 99,000 votes from the website's target audience of 9 - 15 year olds. What happened to the innocent Hannah Montana?

Ms. Cyrus, 18, has not been shy when it comes to posing for controversial photos, not to mention the infamous Salvia video in which the young star was seen smoking from a bong.

Also in the running for the worst celebrity influences ... Lindsay Lohan, Kanye West, Chace Crawford and "Teen Mom" Amber Portwood.