▁ ▁Un re leased ▁Songs ▁ ▁Notes ▁ ▁References ▁ ▁Green ▁Day ▁* <0x0A> </s> ▁A ▁top ▁hat ▁is ▁a ▁tall ▁hat ▁worn ▁primarily ▁in ▁the ▁ 1 9 th ▁and ▁early ▁ 2 0 th ▁century . ▁ ▁Top ▁hat , ▁Top ▁Hat , ▁Top hat ▁or ▁Top - hat ▁may ▁also ▁refer ▁to : ▁▁ ▁Top ▁Hat , ▁a ▁ 1 9 3 5 ▁film ▁st arring ▁Fred ▁A sta ire ▁and ▁G inger ▁Rog ers ▁ ▁Top ▁Hat ▁( mus ical ), ▁a ▁ 2 0 1 1 ▁stage ▁musical ▁adapted ▁from ▁the ▁ 1 9 3 5 ▁film ▁ ▁Top ▁hat ▁( light ing ), ▁a ▁the atr ical ▁light ing ▁device ▁ ▁Top ▁hat ▁( roller ▁co aster ▁element ) ▁ ▁Top H at ▁( t eles cope ), ▁a ▁bal lo on - bor ne ▁experiment ▁to ▁measure ▁the ▁cos mic ▁mic row ave ▁background ▁ ▁Top ▁Hat ▁( T U GS ), ▁a ▁rec urr ing ▁character ▁in ▁the ▁children ' s ▁television ▁series ▁T U GS ▁ ▁Top ▁Hat ▁ 2 5 ▁( and ▁later ▁model ▁Top ▁Hat ▁ 2 7 ), ▁an ▁Australian - made ▁sail ing ▁y acht ▁ ▁Top - hat ▁filter , ▁a ▁signal ▁filtering ▁technique ▁ ▁Top - hat ▁transform , ▁an ▁operator ▁from ▁mathematical ▁morph ology ▁and ▁digital ▁image ▁processing ▁ ▁Top H at ▁( bio in format ics ), ▁ ▁a ▁bio in form atic ▁sequence ▁analysis ▁package ▁tool ▁▁ ▁T OP H AT , ▁crypt onym ▁of