The gorgeous couple joined the likes of TOWIE, Made In Chelsea and Geordie Shore stars at bash on Monday night (2 March) thrown by The Sun newspaper.
Michelle, 27, looked beautiful in her simple red skirt and patterned jumper, teamed with nude strappy sandals and a tan shoulder bag.
While she usually favours bouncy, voluminous hair on the red carpet, last night she opted for a chic top knot.
Heart FM DJ Mark, meanwhile, looked smart in black trousers and blazer.
Michelle and Mark - who attended the BRIT Awards together last week - are planning to marry in England later this year at what's sure to be a star-studded ceremony, thanks to a guest list including Mark's TOWIE family and Michelle's ex-Corrie castmates!
We already know that The Only Way Is Essex star Jessica Wright will be a bridesmaid. She was pictured out and about with Michelle at the weekend.
Jess also took to Twitter to gush about her brother and soon-to-be sister-in-law's relationship, saying: "Love these two so much. True love at its best."
We're sure plenty of people would agree!
Recap Mark and Michelle's romance!