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

Get excited! Donny D-Fine is back, and has managed to turn another popular social networking site into a fitness workout. This time it's Twitter. We first came across Donny a few months ago when the OnSugar blog goddessbody shared his Facebook workout: "Update your body, not your status." It was pretty hilarious, and also effective if you were looking to sweat a bit. This time around Donny has Read more

Now that The Real Housewives of New York City is on break, star Kelly Bensimon has time to film her own reality videos. Leaving the housewives drama behind, Kelly opts for a fitness video instead, which she uploaded onto her YouTube account. In the video, Kelly demonstrates that her moves for a quick, fit workout are lunges, squats, and headstands. (This all came after a two-mile run with her Read more

If you enjoyed the Memorial Day stability ball workout from the Tone It Up group, here's another workout to help you feel confident in your bikini. Hey it's Karena and Katrina from ToneItUp.com! Here is the workout we do in our Celebrity Bikini Body Bootycamp! Below is your printable routine. Have a great workout. Workout: Do each move 15-16 reps and repeat each circuit twice. For a Read more

Not everyone has an hour a day to work out, so it's great to have fitness videos available to lead you through shorter sessions. The Fit in 5: Ultimate Body Blitz DVD ($17) includes five unique workouts, so you can choose one you're in the mood for, or do all five at once to get a full body workout. Each of the five 20-minute sessions is a snippet of a previous DVD Acacia has published, making Read more

Although I'm not a fan of Acasica's title choice for its DVD series being "Weight Loss," I enjoyed Weight Loss — Cardio Sculpt and Weight Loss — Cardio Kick workouts. The latest in the series, Weight Loss — Pilates ($15), didn't disappoint either. Unlike most Pilates DVDs, which focus on mat exercises, this workout contains some cardio. The instructor, Kristin McGee, leads you through Read more

Madonna may have given trainer Tracy Anderson the boot, but that hasn't stopped pal Gwynnie Paltrow from professing her adoration for all things Tracy. The actress pens a love note to the trainer in her latest GOOP newsletter that also includes a video workout and mini-interviews from celebs like Courteney Cox, Donna Karan, and Kristin Davis. "Tracy shares with us a little arm series that I did Read more

Hemalayaa is back, but this time she's not burning it up Bollywood style. This sensual and upbeat instructor is all about yoga in her video Yoga for Everyone. Her approach is far from serious. Hemalayaa thinks yoga should be fun, playful, and even make you feel giddy. She says, "when you practice joyfully in your home, then you can take that joy out into the world with you," making you feel Read more