User blog:DaRKMaRoWaK/Sonic Dash releases Angry Birds Epic characters as playable characters for 100,000,000 downloads celebration.

http://www.angrybirdsnest.com/members/theangrybird/album/picture/14820/

Just take a look at the Sonic Dash app in your updates and you'll find out about it.

Two of my most favourite franchises merging, I should be happy yet I'm freaking out right now...