Pearl Jam's Eddie Vedder at Bruce Springsteen show

Eaddie Vedder sings as Pearl Jam performs on the Rocky stage at the Made in America festival in Philadelphia, Pa. on September 2, 2012. ( DAVID MAIALETTI / staff photographer )

Pearl Jam frontman Eddie Vedder is watching Monday's Bruce Springsteen show from a Citizens Bank Park suite.

Vedder briefly visited Springsteen backstage before the concert.

Pearl Jam headlined the Budweiser Made in America festival Sunday.

UPDATE: Despite the hopes expressed by some of our Twitter followers after we posted this Monday night, Vedder did not join the Boss onstage during his concert.