WWD reports that MAC and Rihanna will be collaborated for four color collections for later on this year. The first product we’ll see is MAC RiRi Woo–inspired by Ruby Woo–that will launch to coincide with her concerts on May 4th and 5th. It will be sold online and at Rihanna concerts.

The four collections will be released throughout 2013 will be called RiRi [Hearts] MAC with a total of 31 stockkeeping units. The summer portion will be sold online, which includes two additional lipsticks, Lustre Drops, and a blush duo. The third will be in stores for fall and feature sixteen products, such as lipsticks, a Lipglass version of RiRi Woo, two eyeshadow palettes, and false lashes. The final installment will be in-stores in time for the holidays with ten products, like nail polish, makeup bag, and more lipsticks. RiRi Woo will be sold in all four collections.

For more details about the collaboration and how Rihanna and MAC worked together, read the WWD article in full.