There are two bands with this name.

One is a UK metalcore band who were signed to Blackfish Records in the later part of the 90s and early 2000s. They had two split records, one with Knuckledust and the other with December, and an ep.

The other is a Danish pop rock band. 4 guys from 4 different countrys, Iraq, Uganda, Denmark & Norway. They got a breakout in 2006 with their single "Don't fight it" and then later "Butterfly".

UNiTE. is also the name of a japanese oshare kei band. For this group, please use the tag ユナイト.