The rapper explained:
[Image via Karl Lagerfeld/Harper's Bazaar.]
Warning: this video may inspire you to hop up and down in place. LOLz!!
They hopped like kangaroos and sang in perfect unison, reminding us to re-watch their super fun Safe And Sound music video!!!
This group is so great on stage, in our ears, on video, EVERYTHING!!
[Image via Tumblr.]