The bassist explained that 2009 ended up being the "best year" for him when the group reformed for a world tour.
Talking about the band's history, he told ITV1's Daybreak: "It was a real success. It started at the beginning of the '80s, but when it got to the end of the decade it got past its sell by date with the rise of DJ culture. We stopped at a really big high, and that's why people want it back now."
On the reunion gigs, he explained: "It was the best year of my life, getting back together with guys that I'd missed for years.
"To be back on stage with them, the reunion tour gig in Dublin was the highlight of my life."
When asked if they may tour again in the future, he said: "It's a difficult one, because we had so long off, during which time we had solo careers. So you have to allow for that."
The former EastEnders actor also joked that the group's hit 'Gold' will be heard many times in 2012.
"It's a song people want to hear during the Olympics. It's a good job it wasn't called 'Silver'!" he quipped.
Martin Kemp starred in BBC One's Hustle earlier this year as gangster Harry Holmes.
Watch the video for Spandau Ballet's 'Gold' below: