Happy birthday to both Kesha and Justin Bieber! The 'Die Young' songstress turns 26 today and the Biebs is celebrating his 19th birthday. You know both will be partying tonight, so whose bash would you rather go to?

Kesha's guest list would include Iggy Pop, Willie Nelson, The Flaming Lips and a plethora of metalheads and guys with beards. The party would probably not be held in a posh club, but rather a dive bar or an unconventional location like an abandoned warehouse.

Justin Bieber, on the other hand, is throwing himself a 19th birthday party at a club in London with a circus theme-- complete with fire-eaters, clowns and more! Guests would include NOT Selena Gomez, his new jumpoff EllaPaige Roberts Clarke, Carly Rae Jepsen, and Floyd Mayweather. Quite the motley crew!

So which is it? Vote below.