==Composition==
The song slowly builds upon a piano riff that extends for 13 measures (three measures of 4/4 and followed by a single beat).
The lyrics are mostly nonsensical. The verses have been interpreted as the song itself attempting to introduce itself as a human would. The bridge parodies serious rock ballads into drivel.
== History ==
Good Day was one of the first songs written for Tally Hall, and originally appeared on the [[Party Boobytrap]] EP, then moved to [[Complete Demos]] mostly unchanged. Apart from the orchestration, there were no major changes when updated for [[Marvin's Marvelous Mechanical Museum (Album)|Marvin's Marvelous Mechanical Museum]].
When remixed and partially re-recorded for [[Atlantic Records]] in 2007, quite a couple changes were made, like more vocals on the intro. The "I thought you knew I knew" section was completely re-recorded and more backing vocals were recorded for the "Let us sing" section.
===Live performances===
Good Day was performed on [[w:Fearless Music|]] with the dialogue segments in the breakdown section changed to "Fearless, we are! Fearless, I say!". Rob's chicken sound, however, remained unchanged.<ref>Tally Hall, "Good Day", Live on Fearless Music–via YouTube by ded72385ne (October 20, 2006), event occurs after [https://www.youtube.com/watch?v=96iCy1GQ_sg 2:57].</ref> Tally Hall would also change the breakdown for Ann Arbor's 107.1, where they would change it to saying "[[w:WQKL|ann arbor's 107one]]", random mouth noises, and "Top of the Park"<ref>Tally Hall, "Good Day", Live on [[w:WQKL|WQKL]] (July 6, 2006)–via YouTube by [[Hiddeninthesand.com]] (May 16, 2024), event occurs after [https://www.youtube.com/watch?v=0pmgHF1yQlA&t=169 2:49].</ref>—to advertise their then-upcoming performance at Top of the Park.
==Music video==
For the song, Joe Hawley directed a music video<ref name="frontpage"/> that features many Tally Hall videos played on various TVs in eclectic locations. The first verse features every member singing in front of their own colored background, before. which were filmed in dozens of locations over 4 months in 2006. The refrain features First-person home videos from children doing childlike activities are played over the chorus. [[Drew Morris]] made the animated segments.<ref>Tally Hall (September 15, 2008), [https://vimeo.com/59623332 "Good Day"], ''[[Tally Hall's Internet Show]]''–via Vimeo (February 13, 2013), event occurs shortly after 9:06.</ref> The videos were burned to DVD to film them being played by various devices (mostly TVs) over September.{{cn}}