1) Anthony Pengel better known as U‑Niq, is a Dutch rapper from Rotterdam. U‑Niq is one of the greatest hiphop artists in Holland. He is also a member of the rapgroup «The Most Official». He made 2 albums: Married to Music and Rotterdam.
Correct your tags. The real stage name is U‑Niq.

2) Uniq is a Finnish dance band, that was produced by Sherif Osman, Veikka Erkola, Mikko Uotila, Paavo Siljamäki and Toni Orkosalo.
Uniq released the album «Amore» in 1998.

3) Uniq are a grindcore band from Osaka, Japan.