"Spine-tingling", "show-stopping", and "more rock 'n' roll than ever".
Those were just some of the words music critics used to describe Robbie Williams's first gig for three years.
Opening the BBC Electric Proms, the singer stormed through a 15-song set at the Camden Roundhouse in London.
In echoes of Cheryl Cole's Sunday night jitters, he was said to be shaking with fright before taking to the stage.
The 35-year-old told the crowd: "It's a bit nerve-wracking. Thanks for making me feel comfortable".
Half way through his first song, number two single Bodies, Robbie relaxed. The cheeky grin was back on his face and he was clearly loving every minute.
Backed by a 38-man orchestra, two drummers and an opera singer, Robbie ran through some old favourites, including Angels, Feel and Millennium as well as a cover of Video Killed The Radio Star.
He dedicated No Regrets to pal Gary Barlow, who lost his father this week, and sang new track Won't Do That for girlfriend Ayda Field.
The star told the crowd he got a Take That tattoo as a tribute to the boy band which launched his career.
He was inspired to have the artwork put on his arm after enjoying a get-together with Gary Howard Donald, Jason Orange and Mark Owen.
"But when I showed it to them, they all said in unison: 'you d**k!'' he said.
There was also shock from the audience when Robbie – who performed on The X Factor last weekend – gave his support to brothers John and Edward Grimes, widely regarded as the show's weakest contestants.
"Go for the twins," he told the crowd, who responded with boos. But he persisted: "John and Edward all the way."
Celeb pals turned out in droves to see the gig, which broke records for the most screened live performance worldwide.
Robbie's former flame Geri Halliwell was there with her new love Henry Beckwith.
Other famous fans included Will Young, Ant and Dec, Gavin and Stacey star James Corden. Menawhile new parents Chris Evans and his wife Natasha Shishmanian were enjoying a night out.