A Song that You Wish You Heard on the Radio:
I only listen to the radio while driving, and I think if I heard this song it would really take the edge off of traffic.
A Song from Your Favorite Album:
I really love me some Beyonce, especially this song from this Album recently.
A Song You Listen to When You're Angry:
I actually have iTunes playlists titled helpfully to address my moods, so I have one titled "Angry"...
A Song You Listen to When You're Happy:
...and one titled "Happy."
A Song You Listen to When You're Sad:
It gives me hope. And I love this song in this version from So You Think You Can Dance: