Solange Knowles has announced a new show to benefit Hurricane Harvey relief efforts. The Houston native announced on Instagram that the concert, titled “Orion’s Rise,” will take place in Boston’s Orpheum Theater on Sept. 28. Knowles will be joined on stage by jazz band The Sun Ra Arkestra. “I’m committed to partnering with organizations on the ground in Houston and making contributions to uplift the city that raised me with so much love,” the singer wrote on Instagram. She later announced that she decided to add an additional concert in New York City’s Radio City Music Hall on Oct. 3. Knowles will donate $3 from every ticket sold for this…