Celebrity Twitter Chatter: Mariah Carey, Justin Timberlake, Iggy Azalea and More

Mariah Carey's LBD
Mariah Carey slips into a little black dress at ‘GMA.'
We’ve rounded up some of the best and most insightful celebrity tweets from the past 24 hours.

Mariah Carey with her kids and a Koala, Justin Timberlake wants you to be heard, Iggy Azalea is a fan, plus more fascinating celebrity Twitter posts and words of wisdom below.