R&B singer Angela Winbush started her career as a backup singer for Stevie Wonder and then joined in the duo Rene and Angela. She produces all of her own material as well as for others, including the Isley Brothers, Janet Jackson and Stephanie Mills. Saturday and Sunday, July 16 and 17, at 8 and 10 p.m. Blues Alley, 1073 Wisconsin Ave. NW. Tickets are $43, plus $10 minimum purchase. Call 202-337-4141 or visit bluesalley.com.