A classic, easy-to-layer striped tank.
Seeing a member of the band wearing their own T-shirt is like when they say the name of the movie in the movie.
Few things say punk quite like a plaid mini skirt.
Williams is open to many cardigan varieties, including the chunky and cozy.
Can't decide between white and black jeans? Try both!
Every pop-punk fan needs a pair of these (assuming they don't already).
Check out other private icon rock stars Gwen Stefani, Karen O, and St. Vincent.