Jimmy Kimmel: talk show host by night, fitness instructor by day? Based on this video it looks like all of Hollywood's fittest ladies are joining his "Hottie Body Hump Club." Scarlett Johansson, Minka Kelly, Jessica Biel, Jessica Alba, Kelly Ripa, Eva Longoria, Emily Blunt, Sofia Vergara, and Lindsay Lohan all make appearances in this hilarious sketch promoting the hybrid workout Humpilates, Read more

Want muscles like Cameron Diaz and Jessica Biel? You may want to try CrossFit. The workout has many devoted fans, not just incredibly fit celebrities, who love it not only for its scalability — workouts are tailored to your current ability, and the difficulty increases as you get better — but also for the mental challenge that comes from pushing yourself further with each workout. So, what Read more

Congrats are in order for your favorite fit celeb! While Jessica Biel and Justin Timberlake have been engaged since late last year, she's been keeping her engagement bling a secret — until now. Yesterday Jessica Biel debuted her engagement ring while running errands in LA. The diamond's blindingly big size prompted our very own PopSugar to joke: is wearing that huge bauble around town its own Read more

We are pumped to share one of our favorite stories from Self here on FitSugar! Angelina Jolie, Jessica Biel, Cameron Diaz . . . Who hasn't watched their favorite movie stars walk the red carpet and grown a little envious of their mile-long legs? Granted, most leading ladies are blessed with superior DNA, but that doesn't mean you can't score long, lean gams too! "What is possible for others is Read more

With bikini season just a few months away, get a jump on your fitness regimen now, instead of scrambling one week before your beach vacation to realize it's too late. Do a few of these circuit bootcamp workouts every week, alongside a solid cardio routine and healthy diet, and you'll be beach-ready as soon as the sun comes bearing down this Summer. This boot camp video workout from Jeanette Read more

Cameron Diaz's arms, Lady Gaga's abs, and Fergie's legs: just a few of the famous body parts that are the talk of the red carpet. With the help of these nine workouts, you'll be one step closer to being in celebrity shape for 2012. Lady Gaga's Killer Abs Workout Halle Berry's Shoulder and Back Workout Jessica Biel's Core Workout Kate Middleton's Royal-Worthy Arms Jennifer Lopez's Read more

Hollywood starlets take their workouts seriously! We've rounded up 64 female celebs in tip-top shape, but we want you to pick the fittest of them all. Gwyneth gets her sweat on dancing with Tracy Anderson dance workouts, and Ashley has been training to kick some ass in the Twilight series — but who do you think is more fit? There are other fit chicks to choose from too — Jessica Biel, Cameron Read more

Want to get a long and lean body like Blake Lively? FitSugar reader FitFabCities developed this video workout based on a circuit from Blake's celebrity trainer. Blake Lively is in amazing shape; she has great muscle tone while still keeping some curves — a combo that looks killer in all those fabulous outfits she wears. To get in shape for The Green Lantern, Blake worked with one of my favorite Read more