Since I'm sharing my shopping secrets with just about everyone who crosses my path, I thought I might as well post on here too. The hat is from H&M, it comes in black and magenta, and it cost around $6.
I own about 20 berets (Mama Spoiled Pretty is a fan too, and introduced me to them at age 4) - and this one is, by far, my favorite. Its chic slouchiness instantly transforms me into a hipper version of myself.