Today's news you might've missed:

• Add Helen Mirren to the list of guest stars coming to "Glee" when it returns in January. The acclaimed actress had recorded lines to be the "inner voice" of one of the characters, so she'll be seen and not heard. [TVLine]
• This photo of Jay-Z, Kanye West, Rashida Jones, Aziz Ansari and their pals reminds us more of a high school yearbook shot than a backstage photo from the Watch the Throne tour - but in the best way possible. [PopDust]
• Seth Rogen's tweeting for a cause. The actor has signed up for Twitter to promote his event, "Hilarity for Charity," on January 13. So far, the revelations include a mild desire to test out meth thanks to "Breaking Bad," and a photo of his dog Zelda, who is Jewish. [Seth Rogen's Twitter]
• An ailing George Michael says he's endured "by far, the worst month" of his life. But the good news is that while he's still on the weak side after contracting streptococcus pneumonia, he's feeling "amazing." [L.A. Times]
• If we've learned nothing from celebrity pregnancies, it's that a baby bump is basically like an art canvas, just waiting to be drawn on. Hilary Duff is the latest to join the trend, having painted a holiday present on her growing belly. [Hilary Duff's Twitter]
• Rihanna tries blonde hair and a gold grill on for size in her new music video for "You Da One":

[youtube http://www.youtube.com/watch?v=b3HeLs8Yosw]