07/15/2011 06:50 pm ET | Updated Sep 14, 2011

'Glee' Star Matthew Morrison Joins 'What To Expect When You're Expecting'

It's hard to predict how many big-name celebs will be in the upcoming movie adaptation, 'What To Expect When You're Expecting.'

With a bevy of gorgeous ladies, including Cameron Diaz Brooklyn Decker, Jennifer Lopez, Elizabeth Banks and Anna Kendrick, this (rather unexpected) movie adaption of the go-to pregnancy guide is sure to do well.

The latest to add to this cast is 'Glee' star Matthew Morrison. Reportedly, he will be tangoing with Cameron Diaz on a celebrity dance show and eventually aids in pregnancy, which has them reevaluating their life. The movie will be shot in a 'Valentine' style, with several over-lapping stories.