The new line-up of judges, Take That frontman Gary Barlow, Tulisa Contostavlos from rap band N-Dubz, Destiny's Child singer Kerry Rowland and the only original judge, Louis Walsh, were in the city to cast their eyes over the talent – or perhaps in some cases, lack of it.
All the judges except Gary, who flew into Glasgow Airport, stayed at the plush Hotel du Vin at One Devonshire Gardens in the West End.
They were welcomed to the SECC by a kilted piper, for what is the eighth series of the show, after arriving in separate black Jaguars.
Producers visited Glasgow in March to meet 3000 hopefuls, but this is the first time the judges watched performances.
While the hopefuls were ushered away to prepare for their big moment, audiences for the auditions braved chilly weather to start queuing as early as 7am at the SECC.
The auditions were filmed in front of two different live crowds over the day.
Susan Hollinsworth, 16, from Knightswood, said: "I know a few people auditioning and I wanted to come along and see if they're as good as they make out.
"It won't be the same without the old judges but Gary Barlow's a top chap, and apparently he's not going to hold back."
Lewis D'Andrea, 16, from Kilmarnock, said: "I came because I love the X Factor, and I think these judges are going to be a lot better."
Sibhan Connolly, 16, said: "I hope a Scot can win – although Leon Jackson didn't do too well after winning."
Host Dermot O'Leary and Caroline Flack, who is hosting the spin-off show with last year's finalist Olly Murs, were also in town.
Last year's contest was won by Matt Cardle.