Justin Bieber is officially back in the driver's seat. With just a few weeks left until Christmas, the Biebs' 'Under the Mistletoe' holiday has returned to the Top 10 on iTunes and the Top 5 on Billboard, thanks to a few million eager Beliebers. The 'Baby' singer shared the good news through his tweets today, after appearing at Disney World to film the Christmas Day Parade TV Special on Saturday.

Also in today's best tweets, Miley Cyrus shared a cute pic of two very affectionate friends, while Rihanna made sex jokes and Akon confirmed that he is, in fact, alive. Additionally, Britney Spears and Adam Lambert sang the praises of their fellow pop stars -- Britney pimped Gwen Stefani's new Target clothing line, while Adam fan-boyed over Beyonce. See what your favorite stars were tweeting about today!