Justin Bieber slams 'countless lies,' denies rehab rumors, disses Lindsay Lohan

Make no mistake: Justin Bieber is no Lindsay Lohan.

That's what he wrote in a rant posted Thursday to his Instagram account before editing it to exclude mention of Lohan.

The 19-year-old pop star slammed comparisons to the Merrick native and denies rumors he's headed to rehab, among other "countless lies in the press."

"I'm growing up finding myself while having people watch me and criticise [sic] me everyday I think I'm doing damn good," he writes. "And to those comparing me to Lindsey [sic] Lohan look at her 2012 tax statements :)"

Bieber then deleted the rambling paragraph and reposted it with a different ending, sans Lohan jab.

The full (edited) post:

"Everyone in my team has been telling me, 'keep the press happy' but I'm tired of all the countless lies in the press right now. Saying I'm going to rehab and how my family is disappointed in me. My family is beyond proud, and nothing's been said by them, my grandparents wouldnt know how to reach to press even of they did want to so that was a lie and rehab cmon. if Anyone believes i need rehab thats their own stupidity lol I'm 19 with 5 number one albums, 19 and I've seen the whole world. 19 and I've accomplished more than I could've ever dreamed of, i'm 19 and it must be scary to some people to think that this is just the beginning. I know my talent level and i know i got my head on straight.

"i know who i am and i know who i'm not My messege is to to believe. My albums could be about anything but my messages have been to never say never and believe, not to believe in me but to believe in yourself .. I honestly don't care if you don't believe in me because I believe in me, my friends believe, my family believe, my fans believe, and look where that's gotten me so far..

"I'm writing this with a smile on my face and love in my heart. Letting u know first hand how I feel rather than have these story linger. I'm a good person with a big heart. And don't think I deserve all this negative press I've worked my ass off to get where I am and my hard work doesn't stop here... All this isn't easy. I get angry sometimes. I'm human. I'm gonna make mistakes. In gonna grow and get better from them. But all the love from you guys overcomes the negativity. I love u. Thanks"

What do you think -- is Justin another teenage star on the edge?