Original sentence: Eder joined Aiken on stage for their duet of "Crying", which they recorded for his album.The concert, filmed for a special PBS broadcast due to air in Summer 2010, included guest appearances by  Ruben Studdard and Linda Eder
Edited sentence: Reviews for the concert, which featured Ruben Studdard and others, were overwhelmingly positive.The concert was filmed for a special PBS broadcast due to air in Summer 2010