Pictures: 2010 in Entertainment

Singer Cee Lo Green released an insanely catchy song and gloriously vibrant music video on YouTube. And we can't tell you the name, since it employs one of those words we're not allowed to use. Suffice it to say the radio-friendly version is called "Forget You," and the song has been covered by everyone from Gwyneth Paltrow on "Glee" to William Shatner on "Lopez Tonight." And even though we can't name it, we can't stop humming it.