Lindsay showed off her continued distaste for undergarments in NY this weekend. Linds, who could never be described as modest, seemed pretty comfortable playing a stripper in the upcoming film I Know Who Killed Me, thanks to Sheila Kelley's popular strip tease-based work-out, S Factor. The starlet isn't the only celeb who likes to work it while she works out -- Kate Hudson is also a fan of S Factor and takes classes in LA. The program is about so much more than dirty dancing; it's focused on body toning and self-confidence (though we can't imagine knowing the moves is a bad thing). Curious? FitSugar has teamed up with S Factor to offer you a free introductory class at the studio closest to you!
Okay, completely unrelated but equally important: don't forget tomorrow it's trivia again! This week we're keeping it all in the family (that's your hint so study up). Three lucky winners will be signing off with a fab PopSugar t-shirt so we'll see you in the chatroom at noon PST!