Lagu itu bereksperimen dengan suara yang lebih tenang, mendekati unsur pop rock dan akustik, di mana vokalis dan gitaris Green Day, Billie Joe Armstrong, memainkan gitar akustik dalam lagu itu.
Lirik lagu "Warning" oleh Green Day terkonsep dari kata-kata peringatan, info layanan masyarakat dan rambu-rambu yang sering dijumpai dalam kehidupan sehari-hari. Personel Green Day yaitu Tré Cool, Billie Joe Armstrong, dan Mike Dirnt tercatat sebagai produser dan penulis lagu tersebut.
Lirik lagu "Warning" sebagai berikut:
This is a public service announcement, this is only a test
Emergency evacuation protest
May impair your ability to operate machinery
Can't quite tell just what it means to me
Keep out of reach of children, don't you talk to strangers
Get your philosophy from a bumper sticker
Warning, live without warning
I say, warning, live without warning
Without, all right
Better homes and safety-sealed communities
Did you remember to pay the utility?
Caution, police line, you better not cross
Is the cop or am I the one that's really dangerous?
Sanitation, expiration date, question everything
Or shut up and be a victim of authority
Warning, live without warning
I say, warning, live without warning
I say, warning, live without warning
I say, warning, live without warning
Better homes and safety-sealed communities
Did you remember to pay the utility?
Caution, police line, you better not cross
Is the cop or am I the one that's really dangerous?
Sanitation, expiration date, question everything
Or shut up and be a victim of authority
Warning, live without warning
I say, warning, live without warning
I say, warning, live without warning
I say, warning, live without warning
This is a public service announcement, this is only a test
Pewarta: Abdu Faisal
Editor: Maria Rosari Dwi Putri
Copyright © ANTARA 2024
