Many Game of Thrones fans have the ongoing fear that George R.R. Martin is writing the Game of Thrones books too slow. Paul and Storm, a comedy duo, wrote a song about it. Then they performed it when George R.R. Martin was present in the audience.
Check out Martin getting onstage and going HAM on the band's musical equipment, recorded by Veronica Belmont. Was this planned? Maybe, but if so, that drummer sure freaked out more than necessary. Either way, you don't tell George R.R. Martin what to do: he'll kill your favourite characters and smash your guitar, people.
In case you're curious about the original song, here it is: