The former TOWIE star joined the likes of Sarah Harding and Vanessa White at the fashion event on Tuesday morning (21 April).
Mark was without fiancée Michelle Keegan, who has been hard at work lately on her new movie Strangeways Here We Come.
Essex star Mark has been busy on a new project as well, after landing a presenting role on new children's television show Dengineers.
Hew as on the set of the show yesterday filming scenes alongside UK dance act Flawless. We wonder if we'll see Mark back in any of his old Strictly Come Dancing outfits?!
Dengineers will allow eight to 12 year olds the chance to win their dream den, and Mark will be along to help them on the way.
Mark and Michelle's romance in less than a minute!