Producer: Dr. Dre, Mike Elizondo

Curtis' feel-good club anthem stands up, six years since it sat atop of the pops. 50's genius idea of coming up with a song that's always relevant (there's a new person's birthday everyday, duh) combined with superior production, and one of the best hooks of our time makes it a song that feels like it's the first time you heard it, every time.

Beyonce ended up remixing the song shortly after it blew up.