Mila Kunis

Basketball's March Madness is in full swing in the US, and to celebrate the annual college basketball tournament, we're taking a look at all the celebs who cheer on their favourite teams courtside, as well as the cute couples showing PDA on the Kiss Cam. Whether it's Justin Timberlake and Jessica Biel rooting for the LA Lakers in the playoffs, Cameron Diaz catching a ball mid-game, or Ashton Kutcher and Mila Kunis laughing at themselves on the big screen, stars love to support their most-loved players from the sidelines. See the celebrities hanging out, drinking beer, and checking out the cheerleaders when you click through now.

A yellow brick road stood in for the red carpet at the Oz the Great and Powerful premieres in LA and London, and Michelle Williams, Mila Kunis, and Rachel Weisz arrived looking like they'd stepped out of a fairy tale. In honour of the film's official release today, click through to see the top looks of the movie tour. Be sure to check out our gallery of the iconic beauty looks from the women of Oz too!

Oz the Great and Powerful is out now in cinemas, but the red-carpet (or should we say, yellow brick road) glamour leading up to the film's premiere actually started weeks ago. To promote the film, Michelle Williams, Mila Kunis, and Rachel Weisz travelled around the world — Moscow, Tokyo, London, and Los Angeles, to be exact — bringing their individual brand of glamour to each city for the movie's debut. From understated Michael Kors and statement-making Lanvin to peacock-feathered Burberry and one sexy form-fitting Atelier Versace number, these starlets certainly turned up the evening elegance tenfold for Oz. See every moment from the promo tour right here.

When Oz the Great and Powerful alights in cinemas this week, we'll be re-acquainted with some classic movie characters that first graced the screen in The Wizard of Oz 74 years ago. Since this is a prequel of sorts and focuses on the wizard (played by James Franco), we don't see all of the characters you know and love (sorry, Dorothy), but there are a few younger, slightly different versions of a few familiar Oz denizens. Click through to see how the shiny new class stacks up against the originals.

We were treated to some different beauty looks from our favourite red carpet regulars this week, and we couldn't have loved it all more! Gorgeous Michelle Williams is growing out her pixie crop, but there's no awkward stage to be seen — she was still rocking a mid-length fringe and cool hair like it was nobody's business. Lara Bingle showed signs of a long and happy summer with her sunkissed cheeks and light blonde locks, while Solange Knowles was hands-down the biggest standout on the red carpet with her impossibly cool afro and a gorgeous red lip. On the red carpet? Jennifer Lawrence was subtly sexy, and Charlize Theron wowed the crowd (and became one of our all-time favourites) with her super-short do and flawless face. There's plenty more to see in here — click through to check it out!

Michelle Williams, Mila Kunis, and Rachel Weisz all travelled to London to promote their film, Oz the Great and Powerful, and each brought her styling A-game to the latest red carpet premiere. Rachel was understated in a nude lace Michael Kors number, Michelle was the boldest of the bunch in her peacock feather-embroidered Burberry dress, and Mila was undeniably feminine in a strapless ruffled gown. Before that, Mila and Michelle both exuded dark glamour at the Moscow premiere. Get a closer look at what they've worn so far inside.

James Franco had his leading ladies, Michelle Williams, Rachel Weisz and Mila Kunis, by his side on the yellow brick road carpet at the UK premiere of Oz the Great and Powerful last night. Rachel donned a nude Michael Kors gown to join her co-stars in London after they premiered the film in Russia without her the night before. James, Michelle and Mila got dressed up for the Moscow debut after a busy day of promotional appearances.

Although Rachel missed out on the fun in Russia, she did make the trek to Japan last week. Rachel and James popped up in Tokyo to premiere Oz last Wednesday, and they'll keep up their busy schedule as the March 7 release date nears.

Michelle Williams showed off her legs in a Victoria Beckham dress posing alongside James Franco and Mila Kunis at an Oz the Great and Powerful photo call in Moscow yesterday. Michelle smiled big at the press event, which came just one day after the news emerged that she and boyfriend Jason Segel have split. She also stayed focused on the movie at a Q&A session with Mila, James and director Sam Raimi.

Michelle, much like her Oz the Great and Powerful co-stars, has been busy on the promotional trail for the film. She recently made stops on Good Morning America and the Late Show With David Letterman last week in NYC. James, however, has been doing his part overseas. He linked up with their fourth co-star, Rachel Weisz, to premiere the film in Tokyo last week. Mila, meanwhile, has been balancing another project with her Oz promotional duties. She popped up on the set of The Angriest Man in Brooklyn in NYC last week.

Mila Kunis wore a short lace dress to celebrate her appointment as global ambassador for Gemfields jewellery collection at Soho House in LA yesterday. Her duties as face of the UK brand, which sells ethically and environmentally responsible gemstones, come during a busy time. Mila's latest film, Oz: The Great and Powerful, is set to hit big screens on March 7, and she debuted Oz in LA last week with the help of her co-stars James Franco, Michelle Williams and Rachel Weisz. Although Oz has kept her busy, she was able to fit in a recent trip to Africa for her new duties with Gemfields, and she shared her excitement to be a part of the brand, saying, "While in Africa, I learned that the entire journey that each Gemfields stone takes is carefully considered, and that the environment and the local communities where its mines are located are held in the highest regard." She went on to say, "I truly believe in Gemfields' mission of ethical mining, and I absolutely have fallen in love with the rarity, beauty and history of emeralds." As the face of the jewellery collection, Mila will be involved with Gemfields' new global advertising program, which will feature ad books in several major publications.

While Mila takes on a new appointment, her co-stars are currently doing their part to promote Oz the Great and Powerful around the world. Michelle made two Big Apple appearances on Good Morning America and Late Show With David Letterman yesterday, while James and Rachel travelled to Tokyo to premiere the Disney flick there. Mila will be getting back to work for the film soon as well. She is in LA prepping for her own upcoming promotional appearance on the West Coast that includes a stop on Conan tomorrow.

It's been a busy week in celebrity land, with the Grammys kicking things off in serious style on Monday. Rihanna wowed the crowds on the red carpet, and rightly so — she looked spectacular — while Katy Perry had Ellen DeGeneres' attention in particular (again, probably rightly so). On Thursday came Valentine's Day, and many celebs stepped out with their partners to celebrate the day of love. Nicole Kidman ad Keith Urban were coordinated in low-key black outfits and Katy Perry set tongues wagging (again) with one particular accessory on her finger. There's much more to see, click through now to check it all out!