Coming down with an illness during album release week is probably one of the worst feelings for a music star. If you don’t cancel countless appearances, you’ll have to find a way to successfully manage back to back performances.

Leona Lewis, the usually spot-on live performer, was forced to lip-sync during her Dancing With The Stars results show performance earlier this week due to an illness and it looks like she isn’t quite over that sickness.

Although some portions of her Happy performance on the Ellen DeGeneres show looks and sounds live, all signs points to a pre-recorded backing track when several adlibs are missed. But Leona’s past track record gives her a pass.

Leona is busy promoting her new album, Echo, that landed in stores this week.

Singer and guitarist Orianthi is ready to step from behind the shadows of the amazing artists she’s had the pleasure of playing  for (Michael Jackson anyone?!) and into the spotlight. To continue her quest to pop/rock super-stardom, she dropped by dance show So You Think You Can Dance’s results show to perform her rocking new single According To You.

According To You is taken from her debut album, Believe, that is in stores now. Learn more about Orianthi in our Limelight Spotlight.

Dancing With The Stars packed in some girl power tonight (November 17) when they had both Alicia Keys and Leona Lewis drop by for performances during their somewhat shocking semi-finals results show.

Leona performed Happy, the first single off her latest album Echo. Spot on vocals or excellent lip-syncing? Not quite sure. One thing was clear: Leona looked drop dead gorgeous!

In the next few weeks, Leona will be busy making TV appearances to promote Echo, which lands in stores today.

The pressure was on for the remaining contestants on Dancing With The Stars. Tonight’s (November 17) elimination shaped next week’s finals but before all the dirty work went down, they had a night full of musical performances to get to. One of tonight’s performers was Grammy award winning singer, Alicia Keys.

Alicia, dressed in black leather and the fiercest thigh-high blue boots, performed her new single Try Sleeping With A Broken Heart for the first time on TV. Try Sleeping… is the second single off Alicia’s new album, The Element of Freedom, due in stores December 15th.

Justin Bieber - Wireimage

What’s the best way to wake a teenaged girl up on a Sunday morning? Have Justin Bieber serenade her on Good Morning America!

The 15-year-old crooner appeared on the early morning program yesterday (November 15) to perform songs from his debut album, My World, rushing into stores November 17.

As usual, the appearance caused absolute pandemonium. Dozens of fans packed the studio to see him sing and strum his guitar as they held up signs dedicated to him and tried not to scream their heads off.

With three of the biggest hits of this year all coming from the Black Eyed Peas, it was only right that they’d get a chance to perform them all during their appearance as musical guests on Saturday Night Live. Bucking the typical SNL two performance trend, BEP took the stage three times to perform their newest hit Meet Me Halfway and the Billboard Hot 100 chart toppers Boom Boom Pow and I Got A Feeling.

All three singles are taken from the Black Eyed Peas latest album The E.N.D., released earlier this year to critical acclaim and massive chart success.

Take a look at the Peas doing Meet Me Halfway above and view the others by reading more.

videos spotted at Rap-Up via Mr. World Premiere

Mariah Carey has been hard on the promotional trail pushing the powerful new movie “Precious,” wherein she has a small role as a very un-Mariah-like social worker.

She did a little more promo for the flick last night on the Late Show with David Letterman where she talked about the “torture” she endured getting into character for the movie. She also revealed that she got the role two days before shooting was supposed to begin because actress Helen Mirren dropped out at the last minute.

It wasn’t all movie talk, though. Mariah promoted her latest album, Memoirs of an Imperfect Angel, performing the fan favorite “H.A.T.E.U.” and tried to clear up the drama with Eminem and “Obsessed” one more time. “He continuously references me and I don’t know why,” she said. “I wrote a song that’s kinda like an anthem to all little girls or little kids that get their ponytails pulled or get abused because the boy really is in love with them and they can’t be with them.

“The song is not about anybody, and yet, it could be about anybody. You never know.”

American Idol season 8 winner Kris Allen is less than a week away from releasing his self-titled debut album. To start off his promotion rounds, the singer stopped by the Tonight Show with Conan O’Brien to perform his first single Live Like We’re Dying. With guitar in hand and backed by his band, Kris gave a spirited performance of the song.

Next up for Kris will be a performance on Good Morning America’s fall concert series on November 17th. Kris will play tunes from his debut that will be released the same day.

From the day the CW drama Gossip Girl debuted, it was clear Lady GaGa would be a good match for the show. They obviously loved her music, playing several of her hits in the early episodes, and both GG and GaGa ooze fashion-forwardness. So, how completely appropriate is it that Lady GaGa will make a cameo appearance on the show performing her latest hit “Bad Romance”?! Very!

GaGa struts the stage in a red sequins dress and heavy goth-chic makeup, with a few hot male dancers adding extra drama in the episode titled “The Last Days of Disco Stick.”

Take a sneak peek at the performance above and tune in Monday, November 16 when it airs.

This year you can spend your Thanksgiving with Beyonce. No, she won’t be sitting across from you at the table hogging all of the mashed potatoes. Instead, she’ll be on your TV screen in her “I Am Yours” special airing on ABC.

Cameras follow the Mighty B behind the scenes as she prepared for her 3-night residency in Las Vegas this past summer, getting every bit of the action. From dance rehearsals, to working with the band, to just unwinding, you’ll get to see Bey like you’ve never seen her before. You’ll also get to see Bey work the stage like no one else can.

Check out the promo for the special and make sure you shake off that turkey coma so you can tune in Thanksgiving night, November 26, at 9PM EST.