Friends have been coming out of the woodwork lately on Tom Petty & the Heartbreakers' 2012 European Tour.

First we ran into Lenny Kravitz in Oslo. London was a star-studded affair both offstage and on, with Steve Winwood sitting in with the band for the second night. Amsterdam proved to be just as special as the others as Eddie Vedder showed up a night before Pearl Jam was slated for the Ziggo Dome.

Ed's love of Tom and the band is well-documented in countless interviews and serves as one of the highlights of "Runnin' Down A Dream," the band's documentary directed by Peter Bogdonavich.

In it, Eddie brings the house down singing "The Waiting," and the version played Sunday night at a jam-packed Heneiken Music Hall was just as good.

Smiles were aplenty across the stage after Tom introduced the band and then welcomed Eddie out. Mike Campbell launched into the iconic guitar riff, and Eddie hopped right up to the microphone. delivering a stunning performance of the Hard Promises hit that propelled the band for the rest of the night.

After hugging Tom and walking offstage, Eddie settled in sidestage, eyes glued to the band like the fan that he is.

Oh, and did I mention Jack White was also in the house? He came out to catch the gig on his day off before playing the very same venue the next day.

Cologne, get ready! Check back for more for the 2012 Summer Tour.

SET LIST
Listen to Her
Heart
You Wreck Me I Won't Back Down
Here Comes My Girl
Handle with Care
Good Enough
Oh Well
Something Big
Don't Come Around Here No More
The Waiting*
Free Fallin'
It's Good To Be King
Something Good Coming
Learning to Fly
Yer So Bad
I Shoulda Known It
Refugee
Runnin' Down A Dream

ENCORE:
Mary Jane
American Girl*

* with Eddie Vedder