Complex sentence: She also performed the song at Roseland Ballroom on March 30, and her other performances for the event are scheduled to be on March 30 and 31, April 2,4,6, and 7,2014.
Split into simpler sentences: She also performed the song at Roseland Ballroom on March 30 and 31, as well as April 2. Her other performances for the event are scheduled to be on April 4,6, and 7,2014.