The former Coronation Street star was up bright and early on to learn her lines before coiffing her hair and applying her make-up.
In a selfie which she shared on Twitter, Helen had styled her bleach blonde tresses into loose waves and added a rosy pink gloss to her pout.
Helen, who is set to appear in forthcoming reality show Celebrity Super Spa, also added a pair of false lashes to open up her peepers.
Jokingly referring to her female friend who had stayed over last night, Helen tweeted: "Going through lines till the early hours while my wifey sleeps x."
Alongside an anxious-looking face emoticon, she added: "Audition time!"
Helen has kept tight-lipped about what it is exactly that she is auditioning for, but fans have been quick to wish her luck.
One tweeted: "Good luck, Helen, you'll get the part 100% dead cert xxx"