(Update. Image source: Schola Sainte Cécile)
Cardinal Castrillón Hoyos celebrated the Pontifical Mass on the Altar of the Chair, crowning this year's Summorum Pontificum Pilgrimage. First images by Messa in Latino below:
The Remnant has put up the following video of the procession from Santa Maria in Vallicela to Saint Peter's Basilica, and of the Solemn Pontifical Mass that took place there.