The stars were out in Los Angeles, America, for the premiere of Justin Bieber's new 3D movie Justin Bieber: Never Say Never.
And the fans were there too, trying to catch a glimpse of the the 16-year-old musician!
But how is this fan going to see him through her sunglasses?
Among the stars that came along to watch the movie were the Smith family.
Whip My Hair Singer Willow Smith seems to like her clothes - will her next song be about the colour of her trousers?
Selena Gomez was also there. The film is Justin's first and tells the story of his rise from a small-town street performer in Canada to a global superstar.
Another young singer, Miley Cyrus, came along with her sister Noah.
Even though it was his film premiere, Bieber still had time to check his phone...
But that didn't stop all the photographers trying to grab a snap of a him.
And of course Usher was there too, chatting on stage with his pal Bieber! Justin Bieber: Never Say Never is out in the UK on 18 February.