Complex sentence: On June 2, Sistar announced on their Facebook page that they would be making a comeback; the name and date of the album was announced a week later, under the name "Mol Ah Ae", and scheduled for release on June 20.
Split into simpler sentences: On June 2, Sistar announced on their Facebook page that they would be making a comeback. The name and date of the album was announced a week later, under the name "Mol Ah Ae", and scheduled for release on June 20.