The Scottish hit makers followed Simple Minds and Anne-Marie – who headlined the venue on June 18 and 20 respectively – with a set which covered their illustrious 35-year plus chart career.
Opening with City Of Love, Queen Of The New Year and Fergus Singers The Blues, Deacon Blue then gave the 8,000-strong sold-out crowd Your Town, Chocolate Girl, Real Gone Kid before a stunning finale of Dignity and Wages Day.
Opening the show was chart-topping indie outfit The Lottery Winners.
Next up at the Scarborough venue is music legend Sir Tom Jones on Wednesday June 26.
9. Deacon Blue at Scarborough Open Air Theatre
The Lottery Winners on stage. Photo: Cuffe & Taylor
10. Deacon Blue at Scarborough Open Air Theatre
Deacon Blue performing at the OAT. Photo: Sharon-Latham
11. Deacon Blue at Scarborough Open Air Theatre
Deacon Blue drew a full house to the Open Air Theatre. Photo: Sharon-Latham
12. Deacon Blue at Scarborough Open Air Theatre
Hit-makers Deacon Blue in vocal harmony. Photo: Sharon-Latham