Teen star receives high school diploma

Published On: May 09 2012 07:25:21 AM EDT

Justin Bieber's gift to his mother this year will include a diploma.

The singer announced he has officially earned his high school diploma on Twitter.

He says he stuck to it for his mom even though it meant doing school and work every day.

Legions of Bieber's tween twitter followers re-tweeted his announcement, congratulating him on the achievement.