Jordin Sparks Shows Off 50-Pound Weight Loss at Sparkle Premiere

Jordin Sparks didn't need an over-the-top sequined gown to shine at the Sparkle premiere in NYC Tuesday.

Instead, the film's star, 22, donned a minimalist, alice + olivia by Stacey Bendet peplum frock (with matching patent leather stilettos) which showed off her incredible 50-pound weight loss.

At the Teen Choice Awards last month, Sparks opened up to Us Weekly about the key to her jaw-dropping body makeover, which she first debuted last spring.

"There is no secret," the Season Five American Idol champ shared. "It's just better eating and working out! It's definitely a daily thing."

Jordin Sparks attends the unveiling of "Because of You" on October 6, 2010 in New York City.
Credit: Mike Coppola/FilmMagic

One of her favorite ways to stay active? High-energy dance classes like Zumba.

"My mom's best friend is a Zumba instructor and I loved it," she gushed. "I started with walking then went to jogging and then Zumba." In addition to her cardio-heavy classes, "I started [working with a trainer] and we did 30 minutes of circuit training," Sparks says. "So I didn't feel like I needed to be in the gym for two hours."

Sparks' lifestyle changes have paid off big time -- this summer, the pop star landed the August cover of Shape, where she flaunted her slimdown in a barely-there bikini.

VIDEO: Jordin Sparks surprises a fan with an at-home visit

"I could only dream of having a cover and looking like that," she told Us. "I thought, 'I did it!' I had to walk back to my dressing room and . . . pull myself together because I was overwhelmed. I cried. I shed a little tear."

Tim Tebow Poses Shirtless in Sexy GQ Photo Shoot

Tim Tebow has never looked quite like this!

The devout quarterback, 25, made headlines in February when he decided to appear fully clothed in his Jockey Underwear ads, but in the September issue of GQ, the athlete doffs his top and shows off his chiseled chest and six-pack abs in a photo spread by Mark Seliger.

The 6-foot-3 pro was traded from the Denver Broncos to the New York Jets in March, eliciting mixed reactions from the sports community. Though it's too early to predict how Tebow will perform, he hopes fans will give him a fair shot.

Tim Tebow
Credit: Mark Seliger/GQ

"I think if they're a Jets fan, hopefully they'll be rooting for me. I'll do whatever I can to help this team win football games. I'll give my heart and soul whenever I step on that field and even when I'm on the sidelines," he tells GQ's NFL Kick-Off issue. "And at the end of the day, that's really all you can ask of someone."

When asked if being left-handed will affect the Jets' offense, Tebow laughs. "There isn't too much I can do about that," he says.

Carolina Panthers quarterback Cam Newton, 23, also appears on a separate cover of GQ's September NFL Kick-Off issue.

Tim Tebow Poses Shirtless in Sexy GQ Photo Shoot

Tim Tebow has never looked quite like this!

The devout quarterback, 25, made headlines in February when he decided to appear fully clothed in his Jockey Underwear ads, but in the September issue of GQ, the athlete doffs his top and shows off his chiseled chest and six-pack abs in a photo spread by Mark Seliger.

The 6-foot-3 pro was traded from the Denver Broncos to the New York Jets in March, eliciting mixed reactions from the sports community. Though it's too early to predict how Tebow will perform, he hopes fans will give him a fair shot.

Tim Tebow
Credit: Mark Seliger/GQ

"I think if they're a Jets fan, hopefully they'll be rooting for me. I'll do whatever I can to help this team win football games. I'll give my heart and soul whenever I step on that field and even when I'm on the sidelines," he tells GQ's NFL Kick-Off issue. "And at the end of the day, that's really all you can ask of someone."

When asked if being left-handed will affect the Jets' offense, Tebow laughs. "There isn't too much I can do about that," he says.

Carolina Panthers quarterback Cam Newton, 23, also appears on a separate cover of GQ's September NFL Kick-Off issue.

Ashley Greene Unveils Sexy, Athletic Bikini Body in Malibu!

Ashley Greene's frequent workouts have paid off!

The Apparition actress, 25, showed off her seriously sexy bikini body in Malibu August 12. Wearing an olive green two-piece, Greene unveiled her toned abs, lean legs and sculpted arms while paddleboarding in the Pacific Ocean.

Greene, who was accompanied by an unidentified male companion, recently shared her fitness secrets with Us Weekly. "I think you have to change it up so you don't get bored," she said at NYLON magazine's August issue party in Hollywood July 31. "My friend the other day was like, 'I just got this Groupon for paddle boarding! So we're going to go do that. It's a really good workout and I'm a water person."

Ashley Greene shows off her amazing bikini body while paddling boarding at the beach in Malibu on August 12, 2012.
Credit: AKM Images / GSI Media

"I've done surfing, I've done Pilates, I've done dance, so honestly, [my workout] is just a little mishmash of everything," Greene added.

The actress -- whose new movie, Apparition, is in theaters August 24 -- also dropped hints about what fans can expect in The Twilight Saga: Breaking Dawn - Part 2.

"Everyone has been wanting to see Renesmee being born and the interaction with her, so everyone is going to get to see a little bit of that," she said of the half-mortal, half-vampire baby born to Kristen Stewart and Robert Pattinson's characters.

As for her own character, Alice Cullen, "it's a lot of the same thing with her, being that supportive rock for Bella and Edward and not really choosing sides" Greene told Us. "Then, you know, we always throw in a little fight sequence. Alice always has a very graceful, very fun fight sequence, so we'll see that."

The Twilight Saga: Breaking Dawn - Part 2 is in theaters November 16.

How Kate Beckinsale, 39, Maintains Her Super-Sexy Figure

Known for fighting her way across the silver screen, Kate Beckinsale, who turned 39 last month, knows staying in action-hero shape is no easy feat. Here's how the Total Recall stunner keeps her body in fighting power.

She varies her workouts: Beckinsale doesn't just stick to one routine. The Brit bombshell is a longtime client of celeb yogini Mandy Ingber, who told us that she works with the star several times a week whenever the actress is in L.A., saying, "She is extremely dedicated to her practice and keeps it pure." Beckinsale has also spent time with trainer Ramona Braganza, who worked with the actress on cardio, circuit training, and core-specific exercises. It also comes down to dedication: she takes her training for movie roles seriously, training five days a week, hours at a time.

She keeps it real: A solid fitness routine is tough work, something the Underworld: Awakening actress knows all too well -- she never even stepped foot into a gym until scoring a role in Pearl Harbor. While her action roles force her to do some serious training, she scales back when she's in between movies and told ELLE UK, "I just can't make it part of my daily life. I go to the gym when I have to, and if I have to bulk up or slim down for a film, I will. I've recently got back into exercising four times a week. I run for half an hour at a time but never outdoors as I don't exercise in public. My gym's in my garage at home."

She keeps a (mostly) healthy diet: Whether she is on set, using the Sunfare at-home delivery service, or cooking for herself, Beckinsale keeps it healthy. A typical day for her involves eggs or oatmeal for breakfast, a chicken or veggie wrap for lunch, and fish and veggies for dinner. But it's not all uber-healthy foods for the star; she's said that she'll never turn down a cupcake, piece of birthday cake, or any other cake for that matter!

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