In Search of Sunrise (abbreviated ISOS) is a trance music mix-compilation music CD series. The series is released on Tiësto’s label SongBird. It debuted on the Billboard 200 at #170 with 4,200 sales. On April 7, 2010, Tiësto announced that he would no longer be involved with the In Search of Sunrise series, and would instead start a new mix-compilation series by the name Club Life on his new label Musical Freedom.
