I took this photo at a Robyn concert I attended last March at
Madison Square Garden:

While my seats afforded me only a so-so sight-line to the stage,
I had no trouble seeing the ocean of cell phones, in the hands of
adoring fans, simultaneously recording (without authorization)
Robyn's every move and copyrighted note. Many of those videos were posted on social media moments
after they were created. (Ever been frustrated by how hard it is to
get cell reception in a concert hall or stadium? Surely real-time
video sharing must be partly to blame.) And, after the concert, fan
enthusiasm spilled over onto New York's subway platforms where
hundreds joined in an impromptu singalong of Robyn's
"Dancing On My Own" while awaiting the A train.
Unfortunately, I didn't witness this myself (I took the 2
train), but after videos of this afterparty (featuring Robyn's
music, again without permission) spread virally, I read about it on
social media and news sites. So, I feel as if