The upcoming Rod Stewart/Stevie Nicks co-headlining arena trek has been expanded to two additional cities, and the two plan to share some stage time during the outing.

Stewart and Nicks have tacked an April 22nd show in Vancouver and an April 23rd gig in Seattle onto their joint schedule, which opens March 20th and now includes 18 shows in 16 cities. Tickets for the two newly confirmed dates go on sale Monday. The upcoming trek is dubbed “The Heart and Soul Tour.” Stewart recently said that he and Nicks will sing together during a portion of the upcoming shows, which will run three hours. Stewart said he hopes they can sing “Leather and Lace,” Nicks’ hit duet with Don Henley, together. Nicks proposed “The First Cut Is the Deepest” and “Reason to Believe.”