Gwyneth Paltrow workout Tracy Anderson,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 everyday preparing for Iron Man and that I take on the road. She just made it home-made style for me, lo fi. But it's good. Especially for the batwing problem."

Courteney Cox: "I have seen amazing results that I never thought were possible. My butt has lifted, my arms are sculpted, and my skin is tight and actually clings to the muscle again."

Donna Karan: "The Method is never boring and there are so many options to keep your mind and body engaged. I like that you are doing the work and not relying on a machine."

Kristin Davis: "The thing that I am most impressed with about Tracy’s Method is that it really does elongate and tone muscle. I’ve tried most of the classes and methods out there, and this is the first one that hasn’t added bulk over time (especially to my legs)."
Want a body like Gwyneth's? If so, prepare to lift, squat and sweat for two hours a day, six days a week! "I work freakin' hard," she says. "It's no accident."

In addition to these intense routines, Tracy helps her clients lose inches by cranking up the heat to 80 degrees. "She likes it hot in the room so you sweat, because she says if the room is hot, you're also burning calories to maintain homeostasis," Gwyneth says. "She's always coming up with new ways to kick up the calorie burning."

The routine starts with Tracy's band system. "I developed the band system for Madonna, specifically, which we use to warm up the arms," Tracy says. "It just offers me a new way of getting to the muscle and the angles that I need to get a little bit deeper."

Then, Gwyneth moves on to arm exercises that require little to no resistance. "Only 3-pound weights," Tracy says. "No woman should lift more than 3 pounds."

Read more: fitsugar,oprah