"(Today Has Been) A Perfect Day" is a song composed and sung by Wembley in the Fraggle Rock episode "The Trash Heap Doesn't Live Here Anymore." As Wembley sings, the other Fraggles assist him in "acting out" the lyrics; for example, the phrase "A dancing ring" is represented by Fraggles holding hands in a circle and dancing. The song is the finished, more tuneful version of "What an Awful Day," which Wembley sings earlier in the episode. The melody of the song sounds fairly similar to "Muck and Goo".