Every week day, we break down the must-know entertainment stories from the week before. Today's shortlist:

If you've been missing your dose of British aristocrats being hot messes, never fear: the first look for "Downton Abbey's" fourth season is here. (Deadline)

Filed under: huh?! Kelsey Grammar of all people is joining the cast of "The Expendables 3." Well, he certainly fulfills one requirement (hint: it's not just a number). (The A.V. Club)

AMC, why do you keep doing this to us? "Mad Men," like the almost-ended "Breaking Bad," is going to be split into two seven-episode-long finale seasons. Because it's not as though the network's relying on it to keep going in the face of mediocre continuing shows... Wait... (L.A. Times)

Still watching "The Vampire Diaries"? 1) Good for you. 2) The cast is adding on some new faces, and naturally, they're all very, very pretty. (EW)

Sick of Miley Cyrus? Luckily for you, we've got Justin Bieber news, in the form of the Biebs rapping while shirtless in the music video for Maejor Ali's "Lolly." (Billboard)

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