Complex sentence: The band was formed in 2009 and was originally just a studio project, however, after gaining a wide popularity and signing to Unique Leader Records, the band formed a full line-up and became a full-time touring band.
Split into simpler sentences: The band was formed in 2009 and was originally just a studio project. However, after gaining a wide popularity and signing to Unique Leader Records, the band formed a full line-up and became a full-time touring band.