KEITH Urban describes it as a 'incredible cycle of infinite energy' - the exhilaration he gets from performing in front of a live audience.
In Brisbane on Friday night, Caboolture's favourite son returned home and again demonstrated that endless energy, boyish charm and incredible musical talent which has made him one of the most celebrated Queensland musicians.
For more than two hours, Urban turned on the Friday night party at the Brisbane Entertainment Centre with hit after hit, some of the longest guitars licks in the business, and chest-penetrating rock.
"It's a Friday night, what are you doing sitting on your arses?" Urban asked the crowd before they took to their feet.
Nashville's 49-year-old nice guy was up to his old tricks, giving away a signed guitar and bringing up emerging Brisbane country music talent Jessica Odgers to sing with him on stage.
The Belmont teen was beaming as she sang Somewhere in My Car with Urban who responded to a sign from the girl's mum which read "Please sing with my daughter.''
"Mum was bawling the whole time,'' Urban told the crowd after the song.
The four-hour music marathon started with Buchanan and then ramped it up with the superbly talented American Carrie Underwood belting out some of her biggest hits.
Underwood was accompanied by no less than five guitarists, and electric light show behind her on the giant screens.
Her vocal range was exceptional though a little drowned out by the sheer volume and thumping bass of the music.
Her rendition of Dirty Laundy, a good old country song about cheating, got fans fired up, while her acoustic tribute to Dolly Parton through I Will Always Love You was a nice touch.
Keith Urban took to the stage just after 9pm and continued to entertain fans until past 11pm.
Earlier on a Twitter chat, Urban was asked by fans what he liked about touring.
He said it certainly wasn't the travel, describing it as 'hell', especially having to leave family, including wife Nicole Kidman, behind.
So why does he love it so much?
"The audience, the crowd, the people. You guys,'' was his answer.
"Otherwise it is just one long sound check.''
"Those two hours on stage is everything.
"The synergy that happens at a concert when we come out on stage and the audience give us that energy.
"We give it to them and they give it to us and it just forms this incredible cycle of infinite energy.
"If we didn't have limitations on some of these venues we play. They have curfews and all that nonsense… we would play way longer."
For a guy pushing 50, Urban exhibited endless enthusiasm.
He was clearly out for a good time and ensured everyone joined him on the journey.
Carrie Underwood returned later in the show to sing The Fighter with him before Urban turned his attention to the back of the venue.
Escorted by security to the back of the stadium, he moved to a small, neon-lit stage before declaring: "Who's got the good seats now?"
Throughout the night, there were plenty of personal touches with fans with Urban taking time out to read signs and interact with fans.
He clearly hasn't forgotten his Queensland roots, telling how he had played virtually every pub in Brisbane before becoming an international success.
Urban says his earliest memories of music were going with his parents to listen to live music in Brisbane.
His parents bought him a ukulele when he was four and he started guitar lessons when he was six.
"My mum and dad used to love to go out to see bands play when we were really little,'' Urban told fans in a Twitter video.
"I'm talking like five, six years of age. Mum and dad would take us out to see this band play in this footy club in Brisbane.''
"I would get up and do a song with them occasionally at six years of age.
He said he would often fall asleep at the end of the night under the table, listening to the music.
"I remember falling asleep and the feeling of that bass drum going into me as I fell asleep.
"That's one of the first, really powerful live music memories I have.
"I think my passion is in around that period.''
Urban fans' felt that passion in Brisbane - and that thumping bass sound.
He will return to Brisbane on Saturday night for the finale in the sellout Australian leg of his Ripcord tour.