An opening credits plus a rocking opening OST can set an impression if an anime is worth watching or not. If you're one to watch anime's from time to time, you would know that the opening credits are always worth watching and if the song is worth buying or not.
In this video, a fan of both anime opening OST and Avengers Infinity War has decided to mash both and did a great job at it. You would definitely believe that Avengers Infinity War really has an opening anime song.
The song used is Kana-boon "Silhouette" from Naruto.
And just like any anime opening, it has the lyrics at the bottom and credits on the characters in the movie. How cool is that!
See full video below: