Justin Bieber is set to star in a new concert movie.

The 'As Long As You Love Me' singer - who admitted he isn't in a happy place right now following his split from his girlfriend of two years Selena Gomez earlier this month - has confirmed he is currently filming a follow up to his big screen hit 'Never Say Never' in Miami, Florida.

The 18-year-old Canadian popstar told fans via Twitter on Saturday (26.01.13): ''And yeah word is out... we are shooting a movie here in Miami. Need u all live tomorrow again!!''

The singer's new documentary is based on his 'Believe' tour and will be in 3D.

Justin's dancer Carlena Britch also shared her excitement over the film, tweeting: ''So Miami, help us celebrate tonight & make this a show AND a movie we'll never forget! #BELIEVE3D''

Justin's close pal Aldredo Flores revealed that the footage already looks amazing.

He said: ''Making another movie! Looks sick. Pretty coo! Pretty coo!''

Despite Justin and his entourage's excitement, the singer has admitted in a new interview with Billboard magazine, which will be released in full on Monday (28.01.13) ahead of his new album 'Believe Acoustic' on Tuesday (29.01.13), that he is not in a good place at the moment.

He said: ''I'm not in the happiest place that I've ever been.''

Justin is said to be desperate to win Selena, 20, back and was recently said to be trying to act more mature so she can see he has changed.

The couple broke up shortly after holidaying in Mexico where they had planned to ring in the New Year together but got into a huge argument on December 30 after she allegedly found text messages from other girls on his phone.