The glamour model beat off competition from interior designers Coin and Justin, Irish stand-up comedian Ed Byrne, The Thick Of It star Rebecca Front and cast members from Waterloo Road to sail through for a place in the final.
Wowing judges during the show - a competition which celebs re-create classic dance routines from stage and screen - she gave a hilarious performance of Freddie Mercury's I Want To Break Free.
And taking to Twitter last night after the results, she wrote to her fans: 'Thankyou everyone who voted ahhh it means I have to do it again how scary!! [sic].'
Katie made it through to next month's final along with comedian Russell Kane who impressed the judging panel – Graham Norton, Frankie Skinner and Greg Davies – with a daringly saucy version of Beyonce's Crazy In Love.
However, it seems Katie realises she has stiff competition from the comedian in the coming weeks as she later tweeted: 'So jealous of russell kanes legs haha.'
Read More: Metro