Ke$ha hit the stage on 'Jimmy Fallon Live' last evening and performed her #1 single 'Tik Tok'.
Rihanna is working on a new album, or at least a repackaged version of her 'Rated R' LP.
Ke$ha, made an appearance on ‘Tonight Show with Conan O’Brian'.
2009 breakout star Ke$ha performed her worldwide smash 'Tik Tok' on The Ellen Degeneres Show earlier this week. You can…