Question: who won best rock album of the year
Answer: 5 : The Gray Chapter 2017 Cage the Elephant Tell Me I 'm Pretty Blink - 182 -- California Gojira -- Magma Panic ! at the Disco -- Death of a Bachelor Weezer -- Weezer 2018 The War on Drugs A Deeper Understanding Mastodon -- Emperor of Sand Metallica -- Hardwired .