The blonde singer held hands with her American beau as they arrived for a showing of Dirty Dancing at the Piccadilly Theatre on Friday evening (6 September).
Mollie looked gorgeous in her unusual two-piece, while Jordan dressed down in jeans, a leather jacket and a baseball cap.
'What About Us' singer Mollie is believed to have been dating DJ Jordan since meeting him in February while recording the upcoming Saturdays album.
Mollie and band mates Una Healy, Rochelle Humes, Vanessa White and Frankie Sandford confirmed last week their new album will be called Living For The Weekend. It will feature the smash single 'What About Us', which became the group's first-ever UK number one earlier this year.
Other tracks on the album include 'Gentleman' and new effort 'Disco Love'.
Living For The Weekend is released 14 October.
Watch The Saturdays' 'Disco Love' video below: