Theme from Hey Arnold!

thumb|250px|Seasons 1-3 opening
thumb|250px|Seasons 4-5 opening
The Theme from Hey Arnold! is, as its title suggests, the musical piece that appears at the beginning of almost every episode of Hey Arnold! The music plays over the show's intro sequence as Arnold goes outside to meet up with some of his male classmates. They then go to confront the girls, led by Helga, who has been calling Arnold's name throughout the sequence.
The episodes produced in seasons 4-5 opened with an alternate version of the song. An oddity in the animation (specifically, the close-up of Helga after she first appears onscreen) was also corrected.
The intro sequence was not used for the following episodes, which instead had the show's logo and opening credits appear over the first shots of the episode:
* "Arnold's Christmas"
* ""
* ""
* ""
* ""
* "The Journal"
For some reason, on the album releases of the song, the whole cast shouting the show's title at the end is replaced with just Helga saying it one more time, and Arnold responding "Huh?", unlike in the actual intro.
== Album release ==
; 1996-1998 version
* The Best of Nicktoons
; 1999-2004 version
* The Newest Nicktoons
* Hey Arnold!: The Music, Vol. 1
Category:Hey Arnold! songs
Category:Theme songs