The National in Portal 2

Top music act contributes to Portal sequel
Valve announced that an original song by recording artist The National will be included in its upcoming game, Portal 2, when it is released the worldwide the week of April 18, for Playstation 3, Xbox 360, PC and Mac. Portal 2 will see players introduced to a host of puzzles, devious new test chambers in never-before-seen areas of Aperture Science Labs and be reunited with GLaDOS, the occasionally murderous computer companion from the original Portal. The game's all-new co-operative mode will feature its own campaign and characters, and will force players to both act and think together.