From the Bon Jovi Twitter:

I saw that too. Hallelujah would be awesome. However, I doubt they'd do both Hallelujah and Amen. I saw Amen live on Sunday in Des Moines and it was amazing.

I have to give Jon credit for his ability to focus and concentrate. My seat was right in front of Jon when he was on the circle and there were a few really annoying women screeching throughout the entire song. I could barely concentrate and I wasn't the one singing, lol.

From the first song tonight, as per the Bon Jovi Facebook.
http://i.imgur.com/ZZ8nTsq.jpg

Wow - that's great! I'm glad Jon is showing his support. I'm a marathoner so this tragedy strikes close to home.

Do we know what song it actually is?

It's probably Water... first song for the last few shows and acoustic.

Great to show support of Boston. But sports fan Jon should have known better than to wear a Patriots shirt in Denver. :)

No PBP tonight?

From looking at a picture, I can verify that the song with the "puppets" as part of the pillar video behind the stage was played, been awhile since the two shows in Toronto, can't remember... most likely a routine song in the setlist though

I believe that's WAN, right?