Rihanna‘s annual Diamond Ball charity event just announced one more very special guest. Joining herself, Kendrick Lamar and host Dave Chappelle will be none other than beloved Scottish DJ and Rihanna collaborator, Calvin Harris.

Diamond Ball charity event will return for it’s third annual event but will take place in New York on September 14th, opposed to California where the previous two events were hosted. Money raised from the event will be donated to Rihanna’s very own charity program, Clara Lionel Foundation, to benefit education, health and emergency responses worldwide.

“I’m ecstatic to add my longtime collaborator and friend Calvin Harris to the stellar line-up at this year’s Diamond Ball,” Rihanna commented in a statement. “Calvin’s music will bring the perfect mix of energy and excitement to the evening as we celebrate the Clara Lionel Foundation.”

Calvin Harris and Rihanna are best know for their multi-Grammy Award winning track, ‘We Found Love‘ and last year’s massive summer hit ‘This Is What You Came For‘.