Complex sentence: She had no intentions of returning to music until the late 1990s when former guitarist Crisipin Gray contacted her; in 1999, they formed Queen Adreena and released several albums over the course of the 2000s.
Split into simpler sentences: She had no intentions of returning to music until the late 1990s when former guitarist Crisipin Gray contacted her. The band released several albums over the course of the 2000s.