As part of her monthly Service95 book read series, the “Houdini” singer posted a photo to Instagram looking effortlessly cool in a boxy black Willy Chavarria T-shirt and black slacks.

Have one in black and one in brown so that you ... infallibly ready for a good suit or pair of dressy pants to be thrown its way. For a belt that isn't too wide, turn to Madewell.