Britney Spears

The 2013 Billboard Music Awards are rolling into Las Vegas on Sunday. It's shaping up to be a great show, with Taylor Swift, Justin Bieber, Jennifer Lopez, and Lil Wayne scheduled to perform, while Madonna will be honored with the Top Touring Artist award. Before we check out all the action this weekend, though, we're taking a look back at the Billboard fun in years past. Remember when Jessica Simpson and Nick Lachey took the stage together in 2003 or when Britney Spears heated things up with Rihanna in 2011? Click through to see all the photos, and check back later for coverage from the show!

Britney Spears was back in fine form when she hosted the Wango Tango music festival in Carson, CA, yesterday. She was joined by her former kindred X Factor judge Demi Lovato as well as performers Avril Lavigne, Bruno Mars, and Maroon 5's Adam Levine. Britney wore a formfitting black dress as she took the stage to introduce the acts, marking her first onstage appearance since she left The X Factor back in January. While she didn't perform this time around, Britney fans will get a chance to see the singer perform live soon as she confirmed last week that she will be taking up a residency in Las Vegas. The concert series, which will reportedly be held at Planet Hollywood, will begin in the Fall. Preparing for Sin City isn't the only thing on Britney's mind — she recently tweeted that she is reading The Goddess Inheritance, a YA novel by Aimee Carter.

The Nickelodeon Kids' Choice Awards roll into LA today, and we're getting ready by taking a look at the show's most memorable photos. Kids' Choice is always a fun event and a great chance to see some of our favorite celebs with young family members.

There are many iconic moments from the ceremonies over the years. Selena Gomez was shocked to see Josh Duhamel superslimed in 2011 and good friends Katy Perry and Rihanna teamed up for the orange carpet in 2010. Vince Vaughn and Justin Timberlake gave each other moral support backstage, and even Halle Berry has taken on the slimelight. Click through now to see all the exciting pics from past shows.

L.A. Reid's protégé Tate Stevens was named the winner of The X Factor season two last night. The country star beat out Britney Spears's protégée Carly Rose Sonenclar and Simon Cowell's Fifth Harmony for the top spot and a $5 million recording contract. Carly finished second while Fifth Harmony placed third. Britney shared her support for Carly on Twitter, writing, "You are a winner in my eyes tonight Carly and I know you're going to have a very long career." The event wasn't just about music, though, since judge Demi Lovato, who didn't have anyone in the finals, wowed in a hologram minidress with cutout details. Cohost Khloé Kardashian wore a sequined pink look and later changed into black leather with a rhinestone headband from Untamed Petals. Special guests included One Direction and Pitbull, who both performed during the special finale.

Although her protégée didn't win, Britney said that The X Factor has been a positive influence on her and has helped her get over her shyness. Britney said, "It's no secret I'm a shy person. I feel doing this show over the past year has allowed me to come out of my shell a lot more. Everyone on the show has been amazing and made me feel really comfortable." Britney clearly enjoys her time on The X Factor and has already confirmed that she'll return for season three.

The X Factor season two finale kicked off last night and now the three finalists will have to wait until this evening to find out who will win The X Factor. The three finalists — Fifth Harmony, Tate Stevens, and Carly Rose Sonenclar — all performed three songs, including duets with music superstars. Fifth Harmony performed with judge Demi Lovato, Tate Stevens took the stage with Little Big Town, and Carly Rose Sonenclar sang a duet with LeAnn Rimes. Hosts Khloé Kardashian and Mario Lopez served as MCs for the live event, which included guests like the Jersey Shore cast and previous X Factor castoffs. The finale will finish off with a two-hour show tonight, during which One Direction will perform and the winner will be announced. Britney, who serves as Carly's mentor, has been campaigning hard for her protégée on Twitter, even following back fans who vote for her.

The finale wasn't the only big news for the X Factor judges. Simon Cowell confirmed that he's dating Carmen Electra. Simon said, "She's not my girlfriend. We're people who date. She's adorable, isn't she?"

Britney Spears won high fashion marks for her neon yellow Herve Leger dress on The X Factor last night. Emblem3, Carly Rose Sonenclar, Tate Stevens, and Fifth Harmony all performed for judges Britney, Demi Lovato, L.A. Reid, and Simon Cowell during the semifinals, and now they have to wait to find out who will make the cut to the finals next week. Most critics feel that Tate and Carly will have a guaranteed spot in the finals, but Simon's two groups, Emblem3 and Fifth Harmony, will have to duke it out to avoid getting cut this week. The acts moving on to the finals will be announced tonight.

This has been a busy week for Britney, who was recently named the top-earning female singer of 2012 by Forbes. That news, along with X Factor's upcoming finals, might help Britney bump her way to the top of our list of our favorite female celebrities of the year — don't forget to cast your vote!

Britney Spears, wearing a minidress from Christopher Kane, joined Demi Lovato, Simon Cowell, and L.A. Reid in LA last night for a special X Factor viewing party. Britney, Demi, and their fellow judges bid farewell to two more hopefuls last night. Diamond White, mentored by Britney, and Cece Frey, Demi's final remaining contestant, were eliminated from the competition. There are only four singers remaining; Carly Rose Sonenclar, Tate Stevens, Emblem 3, and Fifth Harmony go into next week's semifinals with their sights set on a $5 million recording contract.

The second season of The X Factor is winding down, and while there's still no official confirmation from Britney if she'll return next year, the show has certainly put her back in the spotlight. Britney's hotter than ever and she's in the running for favorite female celebrity of 2012 — will she get your vote?

Britney Spears turns 31 today! The singer has brought plenty of hotness since hitting the scene in 1999, including endless amounts of ab-baring ensembles and multiple envelope-pushing dance moves. Britney's new role as an X Factor judge and mentor has her hitting the stage in a different way, but her star presence and sex appeal are as hot as ever. We're celebrating Britney's big day with a look back at her steamiest stage moments, from sexy schoolgirl to circus ringleader to full-blown femme fatale. Click through to see them all now!

The X Factor contestants brought their A-game last night for another evening of live performances in LA. We were on hand for the Pepsi LIVE preshow and sat in the audience while front-runners Carly Rose Sonenclar, Tate Stevens, Emblem 3, and the five other remaining contestants sang No. 1 hits. Carly Rose put her own spin on Adele's chart-topping single "Rolling in the Deep" while Tate stuck to his country roots and performed Keith Urban's "Somebody Like You."

The contestants didn't disappoint, but the highlight of the two-hour show went to Britney Spears and the world premiere of her new video with Will.i.am, "Scream & Shout." Britney lent her vocals to the song's intro and chorus and looked incredibly hot dancing throughout the video in an ab-baring minidress. Britney and her fellow judges, L.A. Reid, Simon Cowell, and Demi Lovato, return to the small screen tonight for the double elimination results show.