It was a friendship forged at Richmond Hall, almost two decades before the deco building became the home of The Menil Collection’s pop-y Dan Flavin installation. Artists Mary Hayslip and Trey Speegle met there back when the building housed a series of bars, including a country-and-western dance hall.

Texas-born Speegle moved to NYC in 1980, but he and Hayslip remained friends for over 30 years, and avid supporters and collectors of each other’s work. Hayslip continues to create in various media including collage, ceramics, beading, sculpture, textiles and found materials, while Speegle works largely in a pop vocabulary, having done projects for Anthropologie Home and backdrops for Stella McCartney’s fashions.

“Voodoo Pop: Thirty Years of Friendship and Art by Trey Speegle and Mary Hayslip” is a retrospective exhibition that embodies three decades of the two’s friendship, featuring items from their personal collections, bits of correspondence and photos. It chronicles a friendship through art.

Opening reception 6 to 8 p.m. May 13. Regular viewing hours are 9 a.m. to 5 p.m. Mondays through Fridays, 11 a.m. to 5 p.m. Saturdays. Through June 14. Art League Houston, 1953 Montrose. For information, call 713-523-9530 or visit www.artleaguehouston.org. Free.

Mondays-Sundays. Starts: May 13. Continues through June 24, 2011

This article appears in May 12-18, 2011.