Elton John's dedication to Reese Witherspoon

Photo: Chrissy Lambert

Elton John dedicated "Tiny Dancer" to Reese Witherspoon, who was sitting front and center, during his set Saturday night at Citizens Bank Park, part of his "Face 2 Face" concert series with Billy Joel.

When the in-stadium camera crew showed her face and that of her son on the big screen, Witherspoon quickly flashed a sheepish look that indicated she'd been busted. Her son was wearing headphones to protect his hearing.

Witherspoon, in Philly through October shooting the James L. Brooks comedy that also features Jack Nicholson, Paul Rudd and Owen Wilson, was at the show with her son and daughter and beau Jake Gyllenhaal.

Also spotted front and center was Alexa Ray, Joel's daughter, who performed Friday night at the Tin Angel in Old City.

While John was on stage, Joel was in the back, taping a remembrance of the Spectrum for Comcast SportsNet, which is producing a documentary on the doomed arena.

Witherhaal (or Gyllenspoon) left during John's set, motoring off in an SUV with Gyllenhaal at the wheel.

Witherspoon made friends on the set Friday by having Rita's water ice sent in for 150 people.