Singer is a special encounter in Fallout. You stumble onto a lonely man named Patrick in the desert who you can ask to sing "Na Gheala Mbeadh". Listening to the song increases your Charisma by one point. You can meet him again, but he will not sing the song for you anymore.
The Singer is an encounter in Fallout.
Behind the scences
'Na Gheala Mbeadh' is Gaelic for 'The Light Would'.