VIDEO: Justin Bieber Apologizes for Recent Behavior: 'I'm Not Who I Was Pretending to Be'

Following his debut appearance on this week's ELLEN, bad boy Justin Bieber turned to his official Facebook page to offer an apology for his recent displays of poor behavior in public.

Says the pop star, 'I really want people to know how much I care, how much I care about people and how I'm not that person who says, 'I don't give a f---!' I'm not that kid.' Click here to hear the full apology and watch his appearance on ELLEN below!

Musician, dancer, actor and singer-songwriter, Bieber - who was recently ranked by Twitter as the #1 most tweeted about musical artist of 2014 - has released four number-one albums to-date and has starred in two films,Never Say Never (2011) and Believe (2013).

In 2011, he was nominated for the Best New Artist Grammy. In 2013, Bieber received a Diamond award from the Recording Industry Association of America (RIAA) to recognize his single "Baby" as the best-selling digital song of all-time with over 9.3 million copies sold. That same year, he was also awarded a Teen Choice Award for "Choice Male Artist" and "Choice Single: Male Artist" for his song "Beauty and a Beat." His latest album, Journals, was released last year, one song per week, with nearly all of the songs appearing on the Top 40 charts.

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