Gisele and Jimmy Fallon on all fours?! Hello!

During a visit to The Tonight Show, the supermodel challenged host Jimmy Fallon to get on the floor, tighten his abs and assume the plank position -- and it's pretty impressive.

The leggy Brazilian, who is the new poster girl for Under Armour's new female friendly campaign, showed off her immense strength when she challenged the funny man to do some intense yoga moves.

Despite wearing a leather bodice, heels and trousers -- the mom of two shows off her fit form and her athletic prowess -- while Fallon flounders with the moves. Needless to say the powerhouse model schools the nerdy comedian in all things physical!

Other than her stop at The Tonight Show, Tom Brady's wife has been making headlines for her recent partnership with Under Armour, which is trying to branch out its brand to women.

The sportswear brand recently released a 60-second spot showing Gisele kickboxing while real-life Internet criticism is projected on both her and the walls. The whole thing is pretty powerful and we recommend a watch. We guess life can be hard for pretty girls too!

Someone got extensions!

On Thursday night Kylie Jenner strutted though Los Angeles International Airport, and the 17-year-old reality TV starlet showed off significantly longer locks when X17 photographers snapped her picture.

Last night Kylie tweeted, "All about that new-new! We're unleashing a surprise delivery tomorrow online at @PacSun Get ready! #kandk4pacsun." So what's all the fuss about? It turns out the Kylie and Kendall are releasing selfie T-shirts with PacSun. Seeing as big sister Kim Kardashian published a book of her selfies, are we surprised?

"We're so excited to surprise fans with our new Selfie Tees," the sisters told Us Weekly. "This was a fun project that we worked on with PacSun and can't wait to see the first-ever graphics hit our collection."

If anyone out there is actually interested, the tees cost $25 each.

Brad Pitt and Angelina Jolie earned a combined total of $5 million for sharing their wedding photos with Hello and People magazines, and they've donated ALL of it to charity.

"Each [publication] paid $2.5 million for a selection of wedding pictures from Brad and Angelina’s wedding," a source tells Radar. "HELLO! has the international rights to the pictures. Before the wedding, Brad and Angie personally chose a photographer they had worked with from Getty Images for the wedding."

"Brad and Angelina knew their would be tremendous interest in their wedding pictures, and decided to donate the money to their charitable foundation," the source added.

Back in 2008 Brangelina were paid a whopping $14 million for the first photographs of their twins Knox and Vivienne, and they donated that entire sum to charity as well.

She's a blonde beauty!

Dianna Agron once again decided to step out and take her new look for a spin as she sported a cute floral number and some sexy heels while handling business around Beverly Hills and beyond. We're loving the look!

The 28-year-old Glee actress recently went through a makeover of sorts as she switched to platinum blonde, unbeknownst to her Twitter followers.

"Midnight makeovers," the I Am Number Four star tweeted on August 27. "@davestanwell makes it happen."

Seeing as how this is the first time she's gone this light hair wise, it looks like a success!

What do you think of her new 'do?

She's either still glowing from her engagement or she's got a bun in the oven!

Nicky Hilton dropped by the Kyle by Arlene store in Beverly Hills today for some shopping, and we couldn't help but notice that the socialite was sporting what looked to be the beginnings of a baby bump. Granted, tucking button downs into skirts can be a little tricky and cause some bunchiness, but given that her beau James Rothschild just proposed, we have to wonder!

The heiress and the British banking heir began dating in 2011, and he popped the question during a romantic vacay in Lake Como this past August.

They looked happy to be a part of the action!

Fashion week got kicked off in the right way in New York City, where famed designers, models, editors and celebrities alike converged on the Big Apple for the global event.

Olivia Palermo, Rosario Dawson and Adriana Lima were just a few of the big names in attendance for the slew of fashion shows set to take place from September 3-11.

From such names as Vera Wang and Tory Burch to Jeremy Scott and Victoria Beckham, the city is teeming with the fashion world's best and brightest and their latest trends.

See what other stars made their way to the big event!

She knows how to turn heads!

On Thursday, Courtney Stodden had lots of heads on a swivel while out and about in Beverly Hills rocking an all-white outfit. It even matched her cute companion she had with her!

The 20-year-old reality star made some controversial waves getting married to 51-year-old actor Doug Hutchison back in 2011 while she was 16, but has since reconciled and plans to renew their vows by the end of the year.

She's since tried her hand out on the Reelz show Hollywood Hillbillies with eyes on more cameos in the future but looks like she's got her baby back so there's no stopping her now!

She popped!

Scarlett Johansson has given birth to a daughter named Rose with fiancé Romain Dauriac, her rep confirmed to the Associated Press on Thursday. "Mother and daughter are doing well," publicist Marcel Pariseau said in a statement.

The actress has kept a low profile since news broke in March she was expecting her first child with her French journalist beau. The couple became engaged six months prior to the pregnancy reveal, and have been dating since the fall of 2012. The Her star was previously married to actor Ryan Reynolds before their split in 2010.

Congrats to the new parents!