He has toured New Zealand several times but it's been 12 years since he was last here.
"I'd love to do a full tour over there, but this (Mission) is going to be a great night - I'm really looking forward to it."
The only downside to it is the time restriction he has to adhere to so that all five artists get stage time.
Most of the hits will be rolled out but there are so many - You Make Me Feel Like Dancing, When I Need You, Thunder in My Heart, One Man Band, Long Tall Glasses, Moonlighting... it goes on.
"I may run a few in together - I'm just dying to show New Zealand what I can do."
Showing what he can still do brought out the "full house" signs during a recent tour of the UK and Ireland.
"It was my first headline tour back there for 15 years - I did 16 shows, two-hour gigs - it was just fantastic."
The timing was right, he said, as it was 40 years since he had appeared on television in the distinctive Pierrot costume and make-up.
At 65, Sayer is tireless.
"I still think I'm 25, which isn't a bad thing," he said.
His songwriting talents began to spark back in 1973 when the vocalist for The Who, Roger Daltrey, heard some of the songs he had been co-writing with David Courtney.
Their Giving It All Away gave Daltrey his first hit record without the band.
Then Sayer started sparking his own career and out the hits flowed - The Show Must Go On followed by One Man Band and Long Tall Gasses.
He rocked the UK charts and in 1977 he bagged a US number one with You Make Me Feel Like Dancing which also picked up a Grammy.
When I Need You" then delivered another US number one, and it did well in the UK as well.
"I loved it," he said.
"I've always loved what I do and I've always done what I wanted to do... in this business you have got to be yourself."
There was a time when the record people did ask for more "of those soft love songs" but he did things his way, and it worked.
"I don't think I ever really sold out and that made a difference."
His career continued solidly through the '80s and '90s when he toured extensively, continued writing and recording and even did a spot of acting.
Sales and tours downunder always went well as his records had always sold strongly across Australia and New Zealand.
Sayer said his tours downunder were always enjoyable as the audiences were always fired up for a good time.
That had helped prompt his eventual shift to Sydney in 2005.
"There was not much work around in Europe at that time - there wasn't much live stuff and it was difficult to get work.
"But it was different when I got to Oz... I pretty soon had 60 gigs lined up."
He has his own studio set-up now and has embraced technology - "I write from the voice in my head. I hear the finished song and the computer allows me to get that down".
With a laugh he said his neighbours were very complimentary about some of the sessions he and his band fired up from time to time.
"I live next to a fire station and every now and then the drummer calls by and we play up a bit and the fire guys come over later and say, 'Your drummer's good, we liked that' - so yeah, great neighbours."
He is also part of the Aussies Against Fracking movement simply because, as he put it, "I don't want to see the planet messed up".
Australia and New Zealand had a genuine appeal to himself and many other artists today, he said.
"Because you have a different mentality toward entertainers - artists and painters here are embraced."
He is happy with life but said one thing would make it better.
"I want to hear from some New Zealand promoters... I want to do a full tour over there."
