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23 May 2012, 13:55
The 'Call Me Maybe' star will perform alongside Justin when his tour launches later this year.
Carly Rae Jepsen will join Justin Bieber on his 'Believe' tour across North America from September as a special guest.
The 'Call Me Maybe' singer, who was signed by Justin's Schoolboy Records label earlier this year, was announced as the tour's main support act earlier today (23rd May).
Justin announced that full North American dates for his 'Believe' tour earlier today live on The Ellen Show.
The 'Boyfriend' singer will kick off his tour in Arizona on 29th September and will perform 47 shows across both the US and Canada, eventually wrapping the continent-wide jaunt in Miami, Florida on 26th January 2013.
Both Justin and protege Carly Rae Jepsen performed their respective singles live at the Billboard Music Awards 2012 in Las Vegas on Sunday (20th May).
Tickets for Justin Bieber's 'Believe' North America tour go on sale for pre-sale customers tomorrow (24th May) before going on general sale from Saturday 2nd June.