The 37-year-old singer-songwriter has praised the 'Wrecking Ball' hitmaker's new album 'Miley Cyrus & Her Dead Petz', which has received mixed reviews since it dropped, and admitted he's ''totally transfixed'' by the experimental sound.
Taking to his Twitter account last night (04.10.15), he said: ''I'm totally transfixed by this Miley Cyrus album.''
He added: ''This is why I love music. You can be one artist one year and the next discover some crazy light inside yourself and shine it everywhere.''
But his praise for the eccentric star, 22, didn't stop there as he referred to it as ''amazing'' before he was forced to calm himself down and ''stop tweeting'' about the new album.
He wrote: ''This Miley album is amazing. You can't try to make something like this. You just tap the vein and don't question a single instinct.
''Okay. I'll stop tweeting about it now. Comes down to this: This is a masterwork of whack genius.''
Miley - the daughter of Billy Ray Cyrus - screen shot John's tweets and uploaded the photo to her Instagram account.
She said: ''''F**k yeah 2 dis John [Mayer] f**kin tweetinnnn spreeeee! (sic).''
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