There are more than one band with this name:

1) Hardcore punk band from Sofia, Bulgaria. Ex-members of the band Omerta.

2) Rejection is a modern greek metal band formed in 2004. The band has been through several member changes until September 2007. The influences come from a lot of different styles of the so called "heavy music". Rejection evolved through the years and after the demos it was necessary to record the first full length album "Hollow Prays" produced by the band.

3) Rejection born in July of 2007 as an idea by lead singer and guitarist Yoske Apolloni and drummer Mirko Battisti. That same night, Alberto Battisti (cousin of Mirko) joined the band taking off the duties of the lead guitarist, then after one or two rehearsals, bassist Elia Macali completed the formation. The name "Rejection" has been chosen a few minutes before their first live exhibition, the 25th of August 2007, which will enthusiasm the audience, despite the short time employed for preparation (3 rehearsals in 3 days just before the concert). The band is currently working on their own music.

4) rejection (stylised in lowercase) is an electronic artist signed to the Japanese Tsukuba DTM Laboratory label.