Someone has mashed up Metallica's 'Enter Sandman' with Huey Lewis and the News' 1986 No. 3 hit 'Hip to be Square' - and it's suprisingly catchy.
The mashup was created by Bill McClintock, who has been uploading mash ups to his YouTube channel since 2012 and has racked up over 37 million views all together.
"Hip to Be the Sandman" also combines elements of Judas Priest's 'Living After Midnight' and Megadeth's 'Peace Sells', for good measure.
The video, which has racked up over 280,000 views, shows performance footage from all four acts.
Have a watch above!