By Mia O’Hare Martin Kemp has said he would love to be a grandad, and his wife Shirlie has even offered advice to son Roman. The former Spandau Ballet star has beenmarried to Shirlie for over 30 years, having first started dating when they were in their twenties. They welcomed two children together – singer-songwriter Harley Moon, 34, and radio presenter Roman, 31. The Kemp family have a tight bond with each other, with Roman, Shirlie and Martin appearing on Celebrity Gogglebox. However, it seems talk has turned to the next generation of their family as Martin has opened up about becoming a gr…