Pretty sure AI still requires some input but I am pretty sure the voice and instruments, everything you hear including the tempo was the original creation of whatever AI program was used.
Completely amazing how apparently one dude with AI software can create such a voice, image, all music, arrangement, production, sound engineering etc etc
Not that long ago you would have needed a songwriter, arranger, producer, sound mixer / engineer, studio people, guitar player, drummer, keyboard player, bass player, back up singers, etc etc
And the result is staggeringly good:
People will argue that AI music is "fake" but I disagree. It's the creativity that counts. "Real" singers have been using software for decades now to camouflage the fact that they can't sing very well. And most work was already done by others.
Very few singers are like Prince who wrote, composed, arranged and produced his own songs. And he played most instruments.
Usually that is all done by others / specialists.