When you feel down, you feel so down you turn blue.  
When you feel angry, you feel so angry you turn red.
But when you feel scared,  so scared you turn purple.
When you are jealous, so jealous you turn green.
When you feel happy,  so happy you turn a rosy pink.
When your heart is broken, it can turn black.
When you feel emotional,  so emotional you turn white.
When feel stressed, so stressed you can't cope you turn yellow