Emmy Rossum Is 'Shameless' in L.A.

Emmy Rossum walks around the set of Shameless on Thursday (September 1) in downtown Los Angeles.

The 24-year-old actress filmed some scenes for her Showtime series wearing two different dresses.

PHOTOS: Check out the latest pics of Emmy Rossum

“Our entire cast is shooting a whole day of scenes together. These are our favorite scenes to shoot. The energy is inSANE! #shameless,” Emmy tweeted earlier in the week.

Shameless returns January 8, the same night Kristen Bell and Don Cheadle‘s new show, House of Lies, premieres!

FYI: Emmy is wearing a black lace cap-sleeve dress from the Banana Republic Mad Men collection.