Complex sentence: The largest of these events was a concert and celebration was hosted by the band on November 9,2014 and consisted of performances by both alumni and the current band members, as well as stories and memorabilia from the bands past endeavors.
Split into simpler sentences: The largest of these events was a concert and celebration was hosted by the band on November 9,2014. The event consisted of performances by both Alumni and the current band members, as well as stories and memorabilia from the bands past endeavors.