The Coronation Street star, 29, arrived in fifties vintage style to the British Animal Honours wearing a yellow lace dress by Azagury.
And with her hair pulled back into a retro updo, Catherine certainly pulled off the Doris Day look she wanted.
Shining: Catherine Tyldesley brought the sun out in a fifties looking lace dress of bright yellow
Catherine finished off the outfit with some simple nude court shoes and a rose pink lip colour.
Joining her at the event was co-star, Paula Lane, who also looked to the past decades for style inspiration.
Doris Day: The actress's aim to look like the Hollywood legend certainly came through
Vibrant: Paula Lane joined Catherine for the awards ceremony in similarly stand out fashion