Justin Bieber performing One Less Lonely girl at the O2 Arena - March 4 2013

[@timlucasentertainment]

this song means everything to me

[@TinaLouise73]

I bet the girl he picked out for this song cuddnt BELEIVE her luck!! 😍

[@elianacuevas8744]

Hi. Justin Bieber

[@abagaylesullivan3235]

March the 4 is my bday

[@allymarquez4610]

What did he say at the end?

[@AGATHA10270]

Ahhhhhhhh nooooooooooooooooooo