Chorus
"I keep on moving......."
G|---------------------------|
D|---------------------------|
A|---------4-4--3-3----------|
E|--1-1--4-----------3-4-1---|
Verse
[ Tab from: https://www.guitartabs.cc/tabs/k/katy_brien/lights_on_btab.html ]
|------------------------------------|
|------------------------------------|
|-------------------------1-3-1------| x3
|--1------1------1------1-------1----|
The fourth time round play this
|-----------------------------|
|-----------------------------|
|-------------------------4\--|
|--1------1------1--1--1------|
That's pretty much all there is to it, with a few slight variations but nothing major!