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The 2013 Billboard Music Awards rolled into Las Vegas on Sunday night taking over the MGM Grand. Stars hit the Billboard red carpet and made appearances on stage, but the real fun went on behind the scenes and in the audience. Check out celebrities and performers mingling backstage and posing for photo ops in between winning awards and grabbing the microphone. Jennifer Lopez shared a kiss with boyfriend Casper Smart, while Selena Gomez flaunted her gold costume, plus Miley Cyrus, Ke$ha, Madonna, and more mingled backstage. Make sure to check out all the highlights from the Billboard Awards!

When it comes to Cannes Film Festival, some people are focused on the actors, others on the fashion, but we are zooming in on the manicures. The glamorous dresses call for equally exciting nail designs. Get an up close look at the best nail art and polish spotted in the South of France.

The 66th annual Cannes Film Festival is under way with the help of our favorite A-listers, who aren't afraid to show off their style or beauty chops. With every sunny (and even not-so-sunny) photocall in the French Riviera, we're highlighting the chic daytime ensembles the stars wear before they hit the red carpet — just check out Zoe Saldana looking sophisticated and cool in black and white; Ahna O'Reilly in flirty, ruffled florals; and Marion Cotillard in a perfectly polished minidress. Then click through to see stars doing what they do best: showing off their perfectly chic daytime outfits for the cameras.

Jessica Chastain arrived in Cannes over the weekend and she has already made a splash on the party circuit. She attended a Chanel and Vanity Fair dinner last night, alongside stars James Franco, Milla Jovovich, and Paz Vega. James stopped by the dinner after hosting a party in honor of his ex-girlfriend Ahna O'Reilly on a yacht earlier in the day. Ahna costars alongside James in his directorial debut, As I Lay Dying, which is premiering tonight at the festival.

As for Jessica, she is in the South of France to promote the 50th anniversary of Cleopatra. She will host a special screening of the newly restored project tomorrow and will also wear the famous emerald and diamond necklace Richard Burton gave to Elizabeth Taylor during the production of the film. Jessica stopped over in Cannes after wrapping up filming for her latest project, Miss Julie, in Ireland. Jessica posted photos of her visit to Ireland on her Facebook page, noting that it was "tough to say goodbye" to the Emerald Isle.

The Cannes Film Festival is well under way, with stars like Audrey Tautou, Nicole Kidman, and Emma Watson showing face at photocalls. These more casual events are a feast for the eyes — and not just for the beautiful fashion choices the celebrities make. Their hair and makeup are typically fresh, pretty, and (most importantly) easy to replicate at home. Click through to see all of the best photocall looks straight from Cannes.

Kate Middleton isn't above wearing the same piece twice, and she once again proved that a fashion rerun can still be stylish when she attended a friend's wedding in a familiar Topshop polka-dot dress on May 11. She was first spotted wearing it on her Warner Bros. studio tour back in April. This time, it was the perfect look for the Spring nuptials of Kate's friends William van Cutsem and Rosie Keene, who tied the knot in Ewelme, England. Prince William was also at the bash, where he served as an usher, as was Kate's sister, Pippa Middleton.

The wedding took place while Prince Harry was on his US tour, but now the young royal is back by his brother's side. The two made an official visit to Tidworth, England, today to open four new Help For Heroes recovery centers, which serve wounded service personnel. Kate skipped this event, but that doesn't mean that she hasn't been keeping busy over the past week following her pals' nuptials. Kate has reportedly been taking cooking classes with her new housekeeper, Antonella Fresolone. She also showed off her casual side when she wore sneakers on a shopping trip in London last Tuesday.

The annual Billboard Music Awards celebrate the best in the music industry, but celebrities use it as a chance to debut some seriously edgy beauty looks. Elaborate updos, colorful eyeliner, and bright shadow hues are always expected to be seen on the talented women who strut down the red carpet. Want to take a closer look? Click through to zoom in on your favorite looks from the night.