Justin Bieber has many fans - that much is evident from the record-breaking sales of his new songs, his Instagram popularity, and the fact that tickets for his 2016 Purpose tour proved overwhelmingly popular - but in the Venn diagram of Justin Bieber fans and Metallica fans, the two circles are barely touching.
So it was not met with the warmest of responses when JB decided to appear on both Graham Norton and The Ellen Show wearing a Metallica t-shirt. In fact, metal fans took to Twitter in their droves to have a hissy fit.
There's one person, as it turns out, who didn't mind Bieber's choice of outfit. That person is Metallica's very own James Hetfield. As Loudwire reports, Hetfield published a list entitled, "TOP 10 THINGZ OF 2015" to the band's Met Club fan club.
Alongside "still alive!!!", "meeting Robert Plant" and "shooting 308 sniper rifle out of open door moving helicopter" - an experience we've all had at some point in our lives - Hetfield also cited, "Justin Bieber wearing a Metallica shirt!" as one of his year highlights.
So maybe overly-precious Metallica fans can calm themselves a little now.
Meanwhile, Justin Bieber today added two more O2 Arena dates to the UK leg of his world tour. Tickets for the new date are on sale tomorrow (17 December) at 9am. See dates below. For tickets and more information, visit here.
Tue October 11 2016 - LONDON O2 Arena
Wed October 12 2016 - LONDON O2 Arena
Fri October 14 2016 - LONDON O2 Arena *NEW DATE*
Sat October 15 2016 - LONDON O2 Arena *NEW DATE*
Mon October 17 2016 - BIRMINGHAM Barclaycard Arena
Tue October 18 2016 - BIRMINGHAM Barclaycard Arena
Thu October 20 2016 - MANCHESTER Arena
Fri October 21 2016 - MANCHESTER Arena
Wed October 26 2016 - SHEFFIELD Arena
Thu October 27 2016 - GLASGOW SSE Hydro
Tue November 01 2016 - DUBLIN 3Arena