Watch: Eagles' Kelce performs 'Fly Eagles Fly' with Philadelphia Orchestra

Eagles center and baritone saxophonist Jason Kelce joined the Philadelphia Orchestra on stage Tuesday night for a rendition of "Fly Eagles Fly."

The event at Philadelphia's Mann Center was presented in part by NFL Films, whose composer, David Robidoux, wrote most of the music performed by the orchestra, according to Peter Dobrin of Philly.com.

"We have the Philadelphia Orchestra, the epitome of high culture, sophistication, art, celebrating a bunch of grown men beatin' the crap out of each other," Kelce told the audience.

Kelce played saxophone as a student at Cleveland Heights High School and returned to the Ohio school earlier this offseason to perform with the band.