This week on Instagram, Rihanna hangs out on NYC rooftops, Hit-Boy kicks it with Mac Miller and ScHoolBoy Q, and Kanye season has begun. Plus, Big Sean brings his mom out, Earl Sweatshirt got a new skateboard and Diddy did his own version of "Downton Abbey." Here are the 25 Best Hip-Hop Instagram Photos of The Week.

Above: Kanye West

Instagram name: via @defjamrecordings

Date: May 15

Caption: Kanye. NYC. Via @justdanadane