Three languages were used during the various events during the visit of Pope Benedict to the United States. It is interesting that these are the languages used at worship by the parish of St Charles Borromeo. The entire text may be found at the link below.
http://www.vatican.va/holy_father/benedict_xvi/travels/2008/documents/messale_USA.pdf Examples:A reader proclaims the first reading in Spanish from the ambo at Washington Nationals Ballpark, and the second reading at the Yankee Stadium Mass
The Profession of Faith at Yankee Stadium in Latin as well as the Magnificat, Pater Noster and Regina Caeli at Evening Prayer with the U.S. Catholic Bishops.
The very first hymn by a choir is Tu Es Petrus, the anthem for the Holy Father.
The majority of the various services are in English as is here at St. Charles Borromeo parish.