Lily Tomlin, who headlines Fox Tucson Theatre Sunday night, is heading to the small screen next year with an old friend.

Tomlin and “9 to 5” co-star Jane Fonda signed on to do a half-hour sitcom series with Netflix. The show, “Grace and Frankie,” was announced today.

“We’re very excited, Jane and I,” Tomlin told the Star in phone interview today. “We’re excited to do something together again. I think it’s absolutely fabulous. I think it’s going to be great fun.”

Tomlin, 74,  and Fonda, 76, star as two longtime rivals who suddenly find themselves intertwined when their husbands announce that they are in love and plan to marry. The show is written and created by Marta Kauffman (“Friends”) and Howard J. Morris (“Sullivan & Son”). Netflix ordered 13 episodes, which will begin airing early next year.

Tomlin said production is expected to start in late July. The show has been in the works about four months.

“Jane and I have talked about doing something together like this,” Tomlin said. “We are both interested in older women in the culture and what happens to them and how they make this chapter in their lives cool and fun.”

Tomlin’s show at Fox Tucson Theatre, 17 W. Congress St., starts at 7 p.m. Sunday. Tickets start at $37.