from the Apple Music notes on DITW:

We brought in [Now It’s Overhead singer-producer] Andy LeMaster—who’s helped us make every record we've made, and who’s sung on every record of ours since Letting Off the Happiness. There was a couple of songs on the album—I think it was ‘Tilt-A-Whirl’ and ‘Calais to Dover’—that I had to call a band meeting and be like, ‘We need Andy’s magic little angel voice on these ones.’ Because we've been singing together so long and he knows how to scream exactly like me.

list of Bright Eyes songs that Andy has contributed vocals to:
-The City Has Sex
-Pull My Hair
-The Center of the World
-Sunrise, Sunset
-An Attempt to Tip the Scales
-Method Acting
-False Advertising
-You Will. You? Will. You? Will. You? Will
-Bowl of Oranges
-Don't Know When But a Day is Going to Come
-Nothing Gets Crossed Out
-From a Balance Beam
-Old Soul Song (for the New World Order)
-Gold Mine Gutted
-Ship in a Bottle
-Easy/Lucky/Free
-Four Winds
-Firewall
-Shell Games
-Jejune Stars
-Approximate Sunlight
-Haile Selassie
-A Machine Spiritual (In the People's Key)
-Beginners Mind
-Tilt-A-Whirl
-Calais to Dover

big shouts out to someone who has been a vital part in some incredible songs!