But, as is usually the case, there is more to the story.
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It turns out that the German Shepherd wasn't abandoned -- she just likes to rock.
After a few days of online outrage over a dog owner purportedly leaving their pup at SoFi, Metallica updated the story, posting on Instagram and saying: "Despite reports to the contrary, our friend Storm snuck out of her home adjacent to SoFi Stadium and made her way to the gig all by herself. After a full night taking in the show with her Metallica Family, Storm was safely reunited with her actual family the next day."
The "four-legged fan" "had a great time listening to her favorite songs, including 'Barx AEterna,' 'Master of Puppies' and 'The Mailman That Never Comes" -- tongue-in-cheek references to some of the band's most well-known songs.
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"And in case you were wondering, no. You definitely shouldn't bring your furry friends to the M72 World Tour," the band added. "But this dog sure did have her day."