Spids Nøgenhat, Tivoli's Friday Rock, May 1st, 10pm Tivoli's Friday Rock shows are a seminal summer experience and very often feature class acts on the bill. Spids Nøgenhat may not be that well known outside of Denmark; locally, however, their jovial, psychedelic-sounding exploits have garnered quite a following. See what all this fuss is about for yourself.