It's called "Live Like We're Dying,"
and it's an almost note-for-note cover of a demo
by rising Irish band the Script
(they've opened for Paul McCartney several times).
Stream Kris Allen's version here
His voice sounds bigger and more dynamic than it did on the show and the rapid-fire chorus is sure to give this some traction on the radio, but while the lyrics don't reach the treacle-y heights of "No Boundaries," they're still pushing the same sort of grand, inspirational sentiment in silly cliches.
We only got
86 400 seconds in a day to
Turn it all around or throw it all away
We gotta tell ‘em that we love ‘em
While we got the chance to say
Gotta live like we’re dying
Not surprisingly, Michael Slezak at Entertainment Weekly loves it