Original sentence: On April 9th 2009, in their first concert back in Atlanta Georgia, Chevelle premiered two new singles from the new album: "Letter From A Thief" and "Sleep Apnea"
Edited sentence: On April 9th, 2009, in their first concert back in Atlanta Georgia, Chevelle premiered two new singles from the new album: "Letter From A Thief" and "Sleep Apnea"