Linkin Park's Trademark No. 2

G sharp minor
Just like C sharp minor(C#m) and D sharp minor(D#m), this minor key is also commonly used by the said rock band. And here are those songs:

(Hybrid Theory)
Forgotten
By Myself

Inside the 'Meteora' album, there is no track played on this key.

(Minutes to Midnight)
Shadow of the Day

E minor

In 'Hybrid Theory' and 'Meteora', majority of their compositions are played on minor keys with sharp in its name(e.g. G#m, C#m, D#m). And E minor(Em) is one of the minor keys used by LP with no sharp in the key name itself. Below is a list of such tracks:

(Hybrid Theory)
With You

(Meteora)
Breaking The Habit

Unlike their fisrt studio albums, more than half of 'Minutes to Midnight' songs are played on keys with no sharp in their respective key names. And one of these is E minor.

(Minutes to Midnight)
Given Up