SpongeBob SquarePants (1999)

S1E15 Jellyfish Jam

Title: Jellyfish Jamboree Plot: After a lively jellyfish tags along with SpongeBob on his way home, he makes the impulsive choice to adopt it. The jellyfish has an infectious love for music and dancing. Unfortunately, things spiral out of control as SpongeBob's house transforms into a non-stop bash, with jellyfish arriving in droves throughout the night.