There are at least two bands with this name:

1) Sojourner are a folk-influenced atmospheric black metal band with members from New Zealand, Italy, the UK, and Spain. They have been active since 2015 and have four releases: the full-length albums Empires of Ash (2016) and The Shadowed Road (2018) and the singles "Heritage of the Natural Realm" (2015) and "South Away" (2017, Summoning cover).

2) Sojourner is a hardcore band from USA founded in 2003. So far they have released one demo simply titled Demo 2005 and full-length album Blunt Block in 2010. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.