AC/DC surprised fans this week by releasing a short video clip on all of their social media sites marking the 40th anniversary of their landmark album Highway To Hell. The brief video clip includes the caption “Celebrate with us all month long! #H2H40. It’s on all of AC/Dc’s social media pages including Facebook, Instagram and Twitter. It has been two years since AC/DC posted anything new on any of their platforms and during a week the band is rumored too be planning a new album and tour with Brian Johnson.