Published Wednesday, 21 October 2009
The former Take That singer performed to a sell-out crowd to open this year's BBC Electric Proms.
Williams opened the show at north London's trendy Roundhouse venue with new single Bodies and said: "You nearly made me cry then, but then I realised it's not The X Factor."
Williams, who appeared on the ITV1 show earlier this month, revealed he was a fan of twins John and Edward Grimes.
"Go for the twins," he told the crowd, who responded with deafening boos.
But he insisted: "John and Edward all the way."
The gig was watched by celebrities including radio DJ Fearne Cotton and singer Will Young.
Later the cheeky singer appeared to hold back tears as he revealed his hit Feel was his auntie's favourite song, saying: "I'm sure she's looking down now."
But he then deadpanned: "She's not dead - she's just condescending!"
Tuesday's performance also set a world record for the most simultaneous cinematic screenings of a live concert. The show was screened in more than 250 cinemas across 23 countries, meaning ten s of thousands of the singer's fans across Europe watched the show as it happened.