Nice happy songs

Here are some of my fave nice happy songs. Listen to these songs when you are sad or when you have heaps of assignments and exams and want to kill yourself.
https://www.youtube.com/watch?v=Y66j_BUCBMY
https://www.youtube.com/watch?v=w5tWYmIOWGk
https://www.youtube.com/watch?v=f2dJxFIV28Y
https://www.youtube.com/watch?v=AgFeZr5ptV8
https://www.youtube.com/watch?v=4Ba_qTPA4Ds
https://www.youtube.com/watch?v=X5G9tIe84lE
https://www.youtube.com/watch?v=UL_EXAyGCkw
https://www.youtube.com/watch?v=s3Q80mk7bxE
https://www.youtube.com/watch?v=09R8_2nJtjg
https://www.youtube.com/watch?v=ru0K8uYEZWw
https://www.youtube.com/watch?v=WUcXQ--yGWQ