The "Arrested Development (Main Theme)" is a song that appears at the beginning of all of the Arrested Development episodes.
It was written by Arrested Development composer David Schwartz. It appears on At Long Last... Music and Songs from Arrested Development as a :19 full version.
The musicians on the song are George Doering on Tahitian ukulele, Hawaiian ukulele, and finger pop, Schwartz on electric bass and Vox organ, Adam Marcello on drums and percussion, and Jim McVay as the whistler.