Kanye West Thanks Chance The Rapper For Letting Him Work On Coloring Book

When Chance The Rapper's new mixtape arrived on Friday, musicians took to social media en masse to announce their support for the project. "Shit too fire!" Ty Dolla $ign declared. "New Chance project is very very very very good," Mac Miller added. "I like music that makes me feel like things might just be alright."

Kanye West joined the chorus last night, voicing his thanks on Twitter. "My brother Chance!" he wrote. "Thank you for letting me work on this masterpiece. One of my favorite people."

Here's how Chance and Kanye became friends in 15 steps.