PITTSBURGH —
A high school senior gained viral fame after a video of her playing “Thunderstruck” by AC/DC on mallet percussion in her marching band last year was reposted on social media last week, amassing millions of views.
“He sent me the link, and it had, like, already 6 million views, and I was like, aw, jeez,” said Layla Clark, a senior at Thomas Jefferson High School in Pittsburgh, Pennsylvania…