Princeton President Shirley M. Tilghman welcomes the class of 2011 to Baccalaureate. "You have kept the spirit of Princeton burning brightly," she told the seniors. "May it always light your way."

Photo: Princeton University, Office of Communications, Denise Applewhite (2011)

New York City Mayor Michael Bloomberg speaks to graduating seniors at Princeton University's 264th Baccalaureate ceremony in the University Chapel. The mayor urged students to emphasize service in their lives after graduating from Princeton.

Photo: Princeton University, Office of Communications, Denise Applewhite (2011)

Students from the graduating class of 2011 proceed into the University Chapel for the Baccalaureate ceremony.

Photo: Princeton University, Office of Communications, Denise Applewhite (2011)

Led by students holding the banners of Princeton's six residential colleges, the class of 2011 walks through the courtyard of East Pyne toward the University Chapel for Baccalaureate.

Photo: Princeton University, Office of Communications, Denise Applewhite (2011)

Tilghman joins Bloomberg in the Baccalaureate procession.

Photo: Princeton University, Office of Communications, Denise Applewhite (2011)

Members of the class of 2011 enjoy the Baccalaureate proceedings inside the University Chapel.

Photo: Princeton University, Office of Communications, Denise Applewhite (2011)

Senior Jahnabi Barooah delivers a reading from a Hindu scripture during Baccalaureate, an interfaith worship service.

Photo: Princeton University, Office of Communications, Denise Applewhite (2011)

Some of the 2,000 friends, family members and others gathered outside the chapel wait for the perfect photo of the graduating seniors.

Photo: Princeton University, Office of Communications, Denise Applewhite (2011)