Complex sentence: The album itself was released on February 4,2014, including tracks by artists such as Katy Perry, Iggy Azalea, Sky Ferreira, Natalia Kills, and Au Revoir Simone.
Split into simpler sentences: The album itself was released on February 4,2014. Tracks included the artists Katy Perry, Iggy Azalea, Sky Ferreira, Natalia Kills, and Au Revoir Simone.