Simon, who is expecting his first baby with fiancée Lauren Silverman, is said to have been bedridden since Tuesday with a nasty cold.
Although he is a keen tweeter, BGT honcho Simon has not mentioned his illness on Twitter. He is apparently hoping to join the evening auditions tonight.
A source told The Mirror: "The only good thing is it means auditions in the afternoon will start on time as normally Ant and Dec and the judges are left waiting for Cowell to show up." Ouch!
It seems, aside from Simon's illness, this year's auditions are going well - so well that Amanda Holden let her hair down earlier this week!
However, on Tuesday (5 February), 54-year-old Simon tweeted: "I just got back from [BGT] auditions in Birmingham. Really good and really strange. Lowlight was a dancing owl. Who didn't."
As well as Simon and Amanda, David Walliams and Alesha Dixon are also back for the new series - and new mum Alesha has been rocking some rather amazing make-up!
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