It's Always Sunny in Philadelphia season 4 has 13 episode guides and currently identifies 17 soundtrack songs.
It's Always Sunny in Philadelphia season 4 episodes
Episode 1
Sep 18, 2008
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Episode 2
Sep 18, 2008
1 song
Episode 3
Sep 25, 2008
1 song
Episode 4
Sep 25, 2008
3 songs
Episode 5
Oct 02, 2008
2 songs
Episode 6
Oct 02, 2008
5 songs
Episode 7
Oct 09, 2008
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Episode 8
Oct 16, 2008
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Episode 9
Oct 23, 2008
1 song
Episode 10
Oct 30, 2008
3 songs
Episode 11
Nov 06, 2008
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Episode 12
Nov 13, 2008
1 song
Episode 13
Nov 20, 2008
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