Tonight show host Jimmy Fallon and assorted Muppets sing the Sesame Street theme accompanied band The Roots who are playing school room instruments.
Sesame Street has been running 39 seasons.
http://youtu.be/SHogg7pJI_M
I mentioned that I first heard Katie Perry’s Roar at a Hillsong Church service last month.
I showed it to my daughter and said it’s going to turn up at a lot of school concerts.
Here’s 2000 students at a US highschool doing a one-take lip sync version that must have taken a little bit of organising.
More than a catchy song of female empowerment, I simply like all these young people sharing their excitement and commitment together.
mgpcpastor's blog 
Yes, feel good music videos, thanks Gary.