The boyband will be celebrating their contract with industry giant Sony with a performance at Fat Sams nightclub from 6pm.
The show is available to fans of all ages and Union J will be supported by local talent and rising stars Supanova and Kevin McGuire, both of whom have a growing and dedicated fan base in Scotland.
Cameron Craig of Fat Sams said: “The support for Union J’s Scottish tour has been phenomenal, they have already played to huge crowds in Aberdeen and we are expecting the same again at Dundee.”
Union J’s disappointment over their elimination from X Factor was soon forgotten after they were immediately offered a recording contract with Sony.
Three other contestants have also been signed after their appearances on the current series — Jahmene Douglas, Ella Henderson and James Arthur.