On entering the new Hydro venue, it was as much about the event as the entertainer on opening night, but after a short section of Motown reminiscing and some popular tracks from the last century (Tonight's the Night and Rhythm of My Heart), Stewart asked the audience how it was all sounding, and cheekily quipped "I didn't build it!"
Seeming pleased that the building hadn't fallen down yet ("Have they tested it?") was his excuse for a sleepless night before he introduced his 26-year-old daughter Ruby to sing one of her own songs then joined her in a duet.
An acoustic-style middle section provided most of the slower singalong numbers (First Cut is the Deepest, I Don't Want To Talk About It and Have I Told You Lately) with a 1970s Las Vegas feel to it at times, where the slick musicians looked more at home than the awkward choreography of the backing singers.
The most interesting part of the evening, however, was Stewart's material from Time, his current album release. Singing from the heart, Brighton Beach talks of the daughter he had to give up for adoption, while Can't Stop Me Now is dedicated to his Scottish dad; wife Penny got a nod too in She Makes Me Happy.
By his third costume change, showman Stewart was truly in his element: You're In My Heart was played with images from his beloved Glasgow football team before Maggie May led towards the big finish of Do Ya Think I'm Sexy.
As this was the first night Stewart released tickets for, and the audience probably consisted mainly of his die-hard fans, it's unsurprising that he found the night "truly humbling". If you're heading along on Wednesday, Friday or Saturday look out for the footballs... he's got some right kick on him.