In 2004, EWF and Chicago embarked upon a joint national tour, which gave rise to a DVD of a concert that took place at Los Angeles' Greek Theater titled "Chicago &amp; Earth, Wind &amp; Fire – Live at the Greek Theatre". This DVD was released on June 28, 2005, and was certified Platinum in the US by the RIAA. Chicago and EWF later collaborated for a new recording of Chicago's ballad "If You Leave Me Now," that was included on Chicago's 2005 compilation album "Love Songs". At the 57th Primetime Emmy Awards held on September 18, 2005, at Los Angeles' Shrine Auditorium, the band performed as the opening act with The Black Eyed Peas.