Celebrities and models have one thing in common: A willingness to try trends that most of us common folk avoid. Impossible items like peplums (wait, you want us to wear extra fabric around our hips?), voluminous sleeves (hello, puffy shirt) and drop-crotch pants look great on tanned, toned, so-not-like-us stars and mannequins.
Or so we thought. Upon greater consideration, these seemingly impossible trends could actually be flattering -- if worn properly.
Here, five tricky trends ... decoded.
Do choose a peplum in a soft material that will drape nicely at your waist, thus calling attention to your trim midsection. Jessica Alba
Do opt for a monochromatic palette if you're nervous about adding volume to your silhouette. Amber Riley
Don't try a flamboyant pattern or a tricky construction; the result will be over-the-top. Cece Frey
Do proceed with extreme caution. Take a page from Beyoncé and try the trend in black and keep the top half of your look streamlined and sophisticated.
Don't try this in sequins. Seriously: These pants are almost a joke as they are, add embellishments and you're begging for an <a href="http://www.huffingtonpost.com/christina-anderson/jennifer-lopez_b_1627680.html" target="_hplink">open letter</a>. Jennifer Lopez
Don't wear these bottoms with other <a href="http://www.huffingtonpost.com/2012/11/19/justin-bieber-harem-pants-psy-mc-hammer-amas_n_2159760.html" target="_hplink">MC Hammer-era items</a> (we're talking to you, denim jacket and a bandanna). Justin Bieber
Do embrace a bold shoulder, but keep the rest of your outfit sleek and monochromatic. A cinched waist highlights the upside-down triangle shape that your shoulders are creating. Keri Hilson
Do take this chance to wear a shorter hemline. It balances out the added volume on your arms. Cody Horn
Don't go overboard. This look can very quickly bring Jerry Seinfeld's "<a href="http://www.imdb.com/title/tt0697762/" target="_hplink">Puffy shirt" episode</a> to mind. Fergie
Do pair these flowy skirts with a structured topper (we love a denim jacket or a leather moto number).
Do pair a long skirt with a fitted, detailed top for an evening look. Just make sure that one of the pieces is simple, so as to let the other be the focal point. Natasha Bedingfield
Don't wear a <a href="http://www.huffingtonpost.com/2013/01/04/kim-kardashian-worst-dressed-list_n_2402733.html" target="_hplink">ball-gown</a>. The volume will swallow you, especially if you're petite. Cary Rae Jepson
Do choose a high-waisted option with a short hemline to show off your legs. Anastasia Ganias
Do tuck in a sleek top to counterbalance the skirt's volume. Alexa Chung
Don't try a longer length. The fun of a tulip skirt is the mixture of girlish volume and sexy legs. Anywhere in between and it looks like a ball-gown on a budget. Caroline Trentini
Want more HuffPost Style beauty content? Check us out on Twitter, Facebook, Tumblr, Pinterest and Instagram at @HuffPostBeauty. (For everything else check out our main HuffPost Style Twitter, Tumblr, Pinterest and Instagram @HuffPostStyle.)
Do you have a style story idea or tip? Email us at email@example.com. (PR pitches sent to this address will be ignored.)