There's a good song that would cheer people up maybe it's called:
By Your Side by Tokio Hotel:
http://www.youtube.com/watch?v=M6o5K-BAuio
Also, there's a song that touched me and it always makes me feel better.
Don't Jump by Tokio Hotel:
http://www.youtube.com/watch?v=P-lNBrZCJ9k