The entire series
Yes! Everyone in here is singing! xD Whether you think of this as a cop-out or not, hope you enjoy~

All songs are (c) their original bands.
All Pokesonas are (c) their respective members.
All sprites are (c) their original creators.

ChocolateEevee^cool and Frosti^coord: "Hey Soul Sister" by Train
Bee^dir: "Friday" by Rebecca Black (durr)
DarkPegusus^cool: "We Will Rock You" by Queen (also durr)
IcyCastform: "Feel Good, Inc" by Gorillaz
Kstan^dir: "All the Small Things" by Blink 182.
brae^cool: "Strangers in the Night" by Frank Sinatra.
basscannon^cool and MysteriousVaporeon^cool "Major Tom (Coming Home)" by Shiny Toy Guns
Karkat: "Spam" by Save Ferris
Maestra^cool and Hana-Chan: "Neko Miko Reimu" (dur again)
Nechaken^cool: "Whisper in the Dark" by Skillet
Kat^adm: "Lasso" by Phoenix
Luce^cool: "Catch me if You Can" by Angela Via.
SkyWarrior^coord: "Running in the 90's" (again, dur)
AstyrLuna: "Bad to the Bone" by George Thorogood (durr)
Xetaja^adm: "One-Winged Angel" by Nobuo Uematsu (durrr)
Max^exc: "She Loves You" by The Beatles (durrrrrrrrr)
Darklite: "All In" by Lifehouse
Navarr^dev: "Let Me Try" from Romania, Eurovision 2005
Seromi: "I Believe I Can Fly" by R. Kelly (duhduh)
AnExplodingRuby^cool: "It's My Life" by Bon Jovi (duhduhduh)
Pope^cool: "Iron Man" by Black Sabbath
Sparkleaf^exc: "New Low" by Middle Class Rut