Camelot: If Ever I Would Leave You

Robert Goulet

Homer sings this when it discovered that his back injury has given him a singing voice.

Don Giovanni, K.527: Overture

Mozart

Played in montage of Homer and Julia in imagined scandalous situations.

Superhero

Jane's Addiction

Played when the limo carrying Lenny, Carl, and Homer's groupies drives off.

Shout

Otis Day & The Knights

Sung by Homer, Bart, and Lisa while partying in the downstairs of the house, while Marge is trying to get Maggie to sleep.

Cochise

Audioslave

Played on the radio in the tow truck Homer is a passenger in.

On the Dark Side

John Cafferty & the Beaver Brown Band

Played while home is driving at nighttime through Guidopolis to get milk for Maggie.

Under the Boardwalk

The Drifters

Sung by various tow truck drivers that are held captive in Louie's basement.

Who Can It Be Now?

Men At Work

Played during the montage of Marge being stalked by the prisoner she befriended.

Die Walküre, Act III: Ride of the Valkyries

Richard Wagner

Played when the aliens are coming out of the portal that Kodos opened up.

Theme from E.T. (The Extra-Terrestrial)

John Williams

Played when Bart is helping Kodos escape the authorities.

Blitzkrieg Bop - 2001 Remastered Version

Ramones

Played during the montage of Bart, Lisa, Milhouse, and Nelson pranking the citizens of Springfield during Halloween.

Adagio for Strings

Samuel Barber

Played in scene where representatives of the Festival cruise line show up to the Simpson residence to inform Milhouse that his parents are lost at sea.