They both made cameos in my dream this morning.
Basically it went like this:
I was a seminar with Dr. John Piper attended by a full room of about 200 people. At some point he heard I was a worship leader and kindly asked if I knew that "new worship tune" about going back to the heart of worship.
I chuckled at Dr. Piper.
Without making him feel outdated (that song came out via Matt Redman circa '98), I told him I did. This pleased Dr. Piper very much. So, as I had now gained a bartering chip, I requested that I be able to tag along his next trip involving Matt Chandler. It's kind of a weird request, but that is what a said in my dream. Piper agreed, and I walked away with a worship melody in my head, and a victory in my heart.
End of story.