I saw Iggy a few years ago and he was fantastic.
I also heard Dave Grohl tell a story in person about the time he played with Iggy many many years ago, when he was a nobody, and it was a classic. Iggy apparently showed up sans band and asked a few nobodies from the opener if they played bass and drums. Dave said yep, and played that night with Iggy.
The most telling part of the story was when Dave said, prior to Iggy picking them, the label snobs had told them to get lost, the opener was not welcome. And, of course, their attitude changed a bit when the nobodies joined Iggy onstage.