Before the start of his installation Mass at the Cathedral Basilica of SS. Peter and Paul, Archbishop Nelson Perez greeted all the priests as they entered the church, and even posed for a selfie photo.

The archbishop prepares a thurible with incense.

The archbishop waits as the entrance procession, including hundreds of archdiocesan and religious priest friends, enters the cathedral.

Archbishop Charles J. Chaput, center, enters during the procession for the Feb. 18 installation of Archbishop Nelson J. Perez at the Cathedral Basilica of SS. Peter and Paul in Philadelphia. (Michael Bryant/ The Philadelphia Inquirer)

Archbishop Charles Chaput opens the Mass with prayer.

Archbishop Nelson J. Perez, center, reacts to a funny quip from the Archbishop Christophe Pierre, right, the papal nuncio to the United States, as he reads the apostolic letter from the Vatican announcing Archbishop Perez’s appointment to the Archdiocese of Philadelphia. (Michael Bryant/ The Philadelphia Inquirer)

Archbishop Charles Chaput (second from left) comes to escort Archbishop Nelson J. Perez (left) to the cathedra, or bishop’s chair, as part of the installation of Archbishop Perez as the Archbishop of Philadelphia Feb. 18 at the Cathedral Basilica of SS. Peter and Paul. (Michael Bryant/ The Philadelphia Inquirer)

Bishop Edward Deliman congratulates his friend Archbishop Perez, who participated in the bishop’s episcopal ordination at the cathedral in 2016.

Retired Auxiliary Bishop Robert Maginnis congratulates Archbishop Perez.

A Catholic school student greets the archbishop.

Archbishop Perez is greeted by Msgr. Richard Bolger, representing retired priests of the Archdiocese of Philadelphia.

Elder Vai Sikahema and his wife, representing Area Seventy of the Church of Jesus Christ of Latter-day Saints, greet the archbishop.

Archbishop Perez blesses Deacon August Taglianetti before the proclamation of the Gospel as Deacon Patrick Stokely looks on.

Deacon August Taglianetti

Archbishop Perez gives holy Communion to his brother Louis Martin Perez.

Archbishop Nelson Perez offers Communion during his installation Mass at the Cathedral Basilica of SS. Peter and Paul in Philadelphia on Tuesday, Feb. 18. (Tim Tai/ The Philadelphia Inquirer)

After Mass the archbishop greets some of the hundreds in attendance, including sisters with a congregation that ministers mostly to people of Hispanic and Latino descent, the Servants of the Lord and the Virgin of Matara.