Jennifer Lopez and her boyfriend, Casper Smart, attended the 17th premiere of “Dancing with the Stars” to cheer on her BFF, Leah Remini and her dancing partner, Tony Dovolani.

While at the premiere Lopez tweeted about Remini’s performance, saying that she “couldn’t be more proud!”

Everyone knows Remini from her starring for nine seasons on the hit show, “The King of Queens”. She is also known for her recurring roles on NYPD Blue, Friends, Saved by the Bell, Who’s the Boss?, Fired Up, Evening Shade, and Cheers.

Remini also made headlines earlier this year when she chose to leave her Scientology beliefs and church behind.

“My mother got involved when we were very young so it’s all we ever really knew but over time my eyes opened and I just could no longer be affiliated with the organization and my family felt the same so we left,” Remini told Ellen on “The Ellen DeGeneres Show.”

Vote for my girl @LeahRemini and @TonyDovolani . Call 1-800-868-3411 #DWTS #TeamLeony

— Jennifer Lopez (@JLo) September 17, 2013

Now, Remini has been chosen to compete against other stars including: Jack Osbourne, “Snooki”, Christina Milian, and Amber Riley. Her first performance was a success. Len Goodman said that she was “clean and precise”. However, Bruno Tonioli compared her to Miley Cyrus saying: “I thought we were going to see some twerking”.

Here at #DWTS to support my girl @LeahRemini!!!! She gave it her all and couldn't be more proud of her!!! pic.twitter.com/7JyZvZ2Plk

— Jennifer Lopez (@JLo) September 17, 2013

http://youtu.be/zJetrEGpkAk

Watch and cheer on Remini Monday nights at 8/7c on ABC.

Image via Twitter