Super Happy Magic Forest S01E28 - The Merhaven Song Contest

The forest has run out of bath sponges and is becoming very stinky. Their latest order never arrived, and so the heroes must quest under the sea to Merhaven to collect them. However, Hoofius, whose singing stinks worse than his armpits, decides to enter the annual Merhaven Song Contest and accidentally causes a simple quest to collect bath sponges to turn into something much more perilous.