Watch Lena Dunham Bust a Move for Sia's 'Chandelier' on 'Late Night with Seth Meyers'
We all know that Lena Dunham has a thing for dancing (see here and here), so her surprise Late Night with Seth Meyers appearance should not surprise anyone.
On Monday, the 28-year-old donned a platinum blonde wig, an all-white outfit and danced the night music segment away — for Sia.
Watch the epic routine, above.
Girls will return to HBO for a fourth season in early 2015.