Sub-sui is (was) a Danish band playing energetic rock musik.

The band costalation is:

Flemming Olsen: Drums and percussion
Jonas Gauguin: Bass
Bjarni Olsen: Guitar
Stine Sui Birch: Vocal, guitar, bass, percussion and programming.

They have sent out two singles - Embrace and I.O.U. They also have sent out an album - Reality Insane.

Stine Sui Birch has also done some shows with the Danish band TV2.