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Demi Lovato and Simon Cowell hit the red carpet at the premiere of The X Factor Season Three on Thursday (September 5) at Cecconi’s in West Hollywood, Calif.

The returning judges were joined by the panel’s new additions – Kelly Rowland and Paulina Rubio. The show’s host Mario Lopez and his pregnant wife Courtney Mazza were also in attendance.

“BIIIIIIIIIG news coming on Monday that I can’t wait to share with you!!! 😄😄😄 #CountdownToStayingStrong,” Demi tweeted that day. We can’t wait to find out what is up!

The X Factor‘s third season will premiere on Wednesday, September 11 at 8/7c on Fox.

FYI: Demi is wearing a Topshop top, a Dion Lee jacket, Vince pants, Saint Laurent shoes, and Fallon necklaces.

25+ pictures inside of Demi Lovato and Simon Cowell at the premiere party… More Here! »

Demi Lovato is the lady in black while attending the Fox Summer TCA All Star Party on Thursday (August 1) in Los Angeles.

The 20-year-old X Factor judge was joined by fellow judges Kelly Rowland and Paulina Rubio, who blew kisses to the cameras. Host Mario Lopez was also in attendance!

PHOTOS: Check out the latest pics of Demi Lovato

Earlier in the day, the three beautiful judges promoted the upcoming season of X Factor with Simon Cowell at the 2013 Summer Television Critics Association Tour, which was held at The Beverly Hilton Hotel.

“I haven’t read the newspapers. Am I missing something?” Simon said on the same day about news that he was expecting a baby. “Sorry. Unfortunately, I have to keep this private for the moment. It’s just one of those things, but thank you anyway.”

FYI: At TCA, Demi is wearing a Wastelands vintage blonde tee, LGB jacket, Vince pants, and Prada shoes. At the party, Demi is wearing an ATM Barney‘s shirt, rag and bone blazer, Theory pants, and Shultz shoes.

25+ pictures inside of Demi Lovato and Kelly Rowland attending the Fox Summer TCA All Star Party…More Here! »

Demi Lovato, Simon Cowell, Paulina Rubio, and Kelly Rowland hit the red carpet while arriving for the second day of The X Factor Auditions held at the Galen Center on Thursday (July 11) in Los Angeles.

“Gracias, feeling much better. Thanks @SimonCowell for sending me your doc! They injected my back and neck #Ouch! Let’s rock @thexfactorusa!!” Paulina tweeted. She had to leave the auditions early the day before due to a pinched nerve.

FYI: Demi is wearing a Joseph top, J Brand jeans, and Saint Laurent shoes.

20+ pictures inside of Demi Lovato and Kelly Rowland at the X Factor auditions… More Here! »

Demi Lovato and Kelly Rowland pose for a pic during day one of The X Factor Los Angeles auditions on Wednesday (July 10) in Los Angeles.

The 20-year-old singer and 32-year-old entertainer were joined at the event by fellow judge Paulina Rubio.

PHOTOS: Check out the latest pics of Demi Lovato

Stay tuned later in the day for pics from day two of the auditions!

The X Factor season three will kick off on September 11 on FOX – be sure to tune in!

FYI: Demi is wearing an Isabel Marant dress and Schutz shoes. Kelly is wearing a Wayne shirt and skirt, Christian Louboutin boots, and King Jewelers diamonds. Paulina is wearing a Zac Posen dress, Bimba & Lola gloves, House of Harlow sunglasses, and a Luis Morais bracelet.

Demi Lovato and Kelly Rowland pose for a photo together during The X Factor Judges Press Conference on Thursday (June 20) at Nassau Veterans Memorial Coliseum in Uniondale, N.Y.

The ladies were joined at the press conference and auditions that day by fellow judges Simon Cowell and Paulina Rubio.

The day before, Demi was a beauty in black for first day of auditions on Long Island.

In case you missed the news, Demi will be performing at the WaWa Welcome! America Festival in Pennsylvania on July 4!

FYI: Demi is wearing a blue Christopher Kane dress with a Philip Lim jacket, Saint Laurent shoes, and a Fallon necklace. She is wearing a Hellessy top, Theory pants, and Saint Laurent shoes the day before. Kelly is wearing a Peter Som top and shorts with Nicolas Kirkwood shoes on day one. Paulina is wearing a J Mendel dress, Piumelli gloves, Charlotte Olympia shoes, Worth and Worth hat, and Vita Fede jewelry on day one.

30+ pictures inside of Demi Lovato and Kelly Rowland at the auditions… More Here! »

Demi Lovato waves to the crowd while making her entrance on day two of X Factor auditions in New Orleans on Wednesday (June 12).

The 20-year-old entertainer was joined by her fellow judges Simon Cowell, Kelly Rowland, and Paulina Rubio to watch a bunch of hopefuls perform.

The next day, Demi sent her friend Selena Gomez a tweet to congratulate her on becoming a big sister after her mom Mandy gave birth to a baby girl.

“@selenagomez IS A BIG SISTER!!!!!! Everyone congratulate her and her family!!!!!! #CONGRATSSELENA!!!!” Demi tweeted.

10+ pictures inside of Demi Lovato and Simon Cowell at the auditions… More Here! »

Paulina Rubio, Demi Lovato, Kelly Rowland, and Simon Cowell sit at the judges table on the first day of auditions for The X Factor season three on Tuesday (May 21) in Charleston, S.C.

The afternoon marked Kelly and Paulina‘s first days as being judges, joining Demi and Simon who are returning after last season.

“LOVE THESE GIRLS!!! 😝�’� @KELLYROWLAND & @paurubio #Xfactor #girlpower,” Demi tweeted after the auditions ended.

“Yes! the rumors are true, I’m officially a judge on @thexfactorusa! So excited to be working with @simoncowell @ddlovato & @kellyrowland let the Fiesta begin!” Paulina tweeted earlier in the week after the news was confirmed that she would be joining the show.

WHAT DO YOU THINK of the new judging panel for The X Factor?More Here! »