Lea Michele belts one out in a promo shot for 'Glee' season 3.
Cory Monteith came to play in a promo shot for 'Glee' season 3.
Dianna Agron has obviously done her school-supply shopping in promo pic for 'Glee' season 3.
Let Mark Salling string you along in his new promo pic for "Glee" season 3.
Chris Colfer lets inspiration strike in new promo pic for 'Glee' season 3.
Kevin McHale is feeling a little horny in new promo pic for 'Glee' season 3.
Jayma Mays in a new promo pic for 'Glee' season 3.
Matthew Morrison feels a little blue in new promo pic for 'Glee' season 3.
Allow Jane Lynch to menace you in a new promo pic for 'Glee' season 3.
Darren Criss ties one one in new promo pic for 'Glee' season 3.
School will be back in session at McKinley High on Sept. 20, when "Glee" returns for another season, and you know what that means -- it's time for another round of school portraits.
Click through the slideshow to welcome Chris Colfer, Mark Salling and the rest of the New Directions crew back.
