She has been making some daring choices on the red carpet lately. And Sunday night was no different at the Billboard Music Awards in Las Vegas.

Jennifer Lopez wore a very sexy gown that not only hugged her curves, but also showed off her stomach and underboob. The 45-year-old singer was in an open mood as well as she told Giuliana Rancic, 40, that she will miss American Idol, which was canceled earlier this week.

Also with her was on-again beau Casper Smart who arrived separately but sat next to the AKA singer during the show.

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Still hot: Jennifer Lopez wore a very sexy gown that not only hugged her curves, but also showed off her stomach and under boobs

Exposed: The 45-year-old singer told Giuliana Rancic that she was sad American Idol had ended because she had gotten close to the people working on the competition show

So when’s the wedding?J-Lo shot Smart a loving look as he talked away; it has been reported that they are planning to get married

Gotcha! While the show was on, Jenny and Casper Smart sat side by side but did not show any PDA

They work together too: The co-starred in the Dance Again video and both worked on Home; here she fiddles with a ring on her left hand

He is a hands-on kind of guy: The choreographer put his paw on the Booty singer’s knee as she applauded

Presto-o change-o: Later Casper was not seen, rather Lopez was sitting with her manager Benny Medina; notice behind Lopez is Kylie Jenner

‘It was such a great experience for me, I love the people, I love the journey, I love getting to know the people,’ the Jenny From The Block hit maker said.

The Bronx beauty arrived solo to the event and when Rancic asked her about it she hinted that maybe she would be seen with her beau later.

J-Lo has been seeing Casper again for months. After she did the carpet, he arrived wearing a dark suit.

While the show was on, the two sat side by side but did not show any PDA. At one point, however, he stared at her chest.

The end of an era: ‘It was such a great experience for me, I love the people, I love the journey, I love getting to know the people,’ the AKA singer said about her Fox show

Jennifer presented at the Billboard Music Awards on behalf of Finding Neverland The Album, on which her collaboration with Trey Songs, What You Mean To Me, features.

She said; ‘It’s beautiful musical called Finding Neverland. I love the song I sang with Trey and it has great artists, like Christina Aguilara, John Legend. It’s a great soundtrack.’

As far as her show in Las Vegas, she said she had studied other performers.

She even said that Shania Twain and Britney were her inspirations.

‘We’re going to so an amazing show, high energy,’ she said. Her shows start in 2016 at Planet Hollywood.

Singing in 2016: As far as her show in Las Vegas, she said she had studied other performers. She even said that Shania Twain and Britney were her inspirations

No beau: The Bronx native said on the carpet that she might be arriving with someone special but wouldn’t say

Excuse me, VIP on the scene: The Maid In Manhattan star with her publicist as she hit the carpet

Flirt alert! Smart was not around when The Boy Next Door actress chatted up rapper 50 Cent on the carpet

Her main man: Her boy toy Casper arrived after her; they have yet to confirm they are living together

On stage: The I Luh Ya Papi knockout was a presenter at the ceremony that saw Taylor Swift and Sam Smith as big winners

Two singers get to know each other: Lopez stopped to pose with Brit Rita Ora