There has been 29 seasons [soon to be 30] of The Simpsons. Which Season's 11th episode are you referring to?
If by chance you simply mean the 11th episode, The Crepes of Wrath, the only 'song' heard is Alouette which is whistled by Ugolin. The rest of the music is simply music composed for the episode by Richard Gibbs.
In the episode 'Midnight Rx' the songs are 'White Rabbit' by Jefferson Airplane and 'I Want a New Drug' by Huey Lewis and the News.
No such episode exists with the title, The Answer.
Birdland by Weather Report.
'Dude, Where's My Ranch' (episode 18, season 14).
'Simpsons Spin-off Showcase'. 'I want Candy' features in the third part, 'Simpsons Family Smile-time Variety Hour'.
They was no episode of The Simpsons with Chelsea. Chelsea FC simply were represented as Simpsons characters as promotion for the Simpsons 25th anniversary.
No such episode exists with the title, The Answer.
I Was Made for Lovin' You
Aquamarine, an episode of the Simpsons
It's an extra feature on the 2nd season
Birdland by Weather Report.
There has been over 550 episodes of The Simpsons. You'll have to be more specific as to which episode you're referring to..
Beat on the Brat by The Ramones.
'Dude, Where's My Ranch' (episode 18, season 14).
'Simpsons Spin-off Showcase'. 'I want Candy' features in the third part, 'Simpsons Family Smile-time Variety Hour'.
It's not a named song, it's simply music composed for the episode.
'Round Springfield |S6|E22|
'Break Like the Wind'.