Beyonce gets her groove on at Janet Jackson's Vegas concert with fellow Destiny Child member Kelly Rowland

They know exactly what it's like to be up center stage.

But Beyoncé and Destiny's Child bandmate Kelly Rowland were sitting in the audience on Saturday for a concert in Las Vegas.

The Queen Bey, 37, and Motivation songstress, 38, looked like they were having the time of their lives when spotted busting a move at Janet Jackson's concert. 

Reunited: Beyonce Knowles and Kelly Rowland were spotted busting a move at Janet Jackson's concert in Vegas on Saturday (Pictured in Los Angles in June 2007)

Reunited: Beyonce Knowles and Kelly Rowland were spotted busting a move at Janet Jackson's concert in Vegas on Saturday (Pictured in Los Angles in June 2007)

Rowland shared a pre-show dance session on social media minus Beyoncé who was later spotted at the concert in a green, sequin miniskirt, white top with plunging neckline and hair pulled back in a high ponytail. 

Concertgoers took to social media to share clips of Beyoncé and Rowland dancing as Janet performed at the Park Theater at the Park MGM in Las Vegas

They were seen standing up and grooving as the 53-year-old singer belted out her hit songs.

Rowland posted a number of videos and photos to her Instagram stories before the show.

Green skirt: Beyoncé stood out in a green skirt and white top with plunging neckline

Green skirt: Beyoncé stood out in a green skirt and white top with plunging neckline

Fan favorite: Concertgoers captured images of Beyonce they shared on social media

Fan favorite: Concertgoers captured images of Beyonce they shared on social media

Good times: A clip of Beyonce and Kelly dancing was posted on Instagram

Good times: A clip of Beyonce and Kelly dancing was posted on Instagram

In sync: Kelly and Rowland were in sync as they danced together

In sync: Kelly and Rowland were in sync as they danced together

Fun show: The former Destiny's Child bandmates danced the night away

Fun show: The former Destiny's Child bandmates danced the night away

The Voice Australia coach was seen smiling and dancing with friends as she geared up for the concert, sporting a black blazer and blue denim jeans.   

Her hair was styled in gorgeous voluminous curls while she donned pink lips and a light smoky eye.

The group was celebrating the birthday of a their friend Tracy Robbins, who Roland tagged in a story on her Instagram with the caption, 'Celebration' With The Birthday Gal!!!!' 

Vegas concert: Beyonce and Kelly also sat down for a bit of the concert

Vegas concert: Beyonce and Kelly also sat down for a bit of the concert

Getting ready like: Rowland posted a number of videos and photos to her Instagram stories before the show

Getting ready like: Rowland posted a number of videos and photos to her Instagram stories before the show

Formed in 1990, Destiny's Child was one of the more successful girl groups of the 2000's.

The group's core members included Beyonce, Kelly Rowland, and Michelle Williams. Former members include LeToya Luckett, LaTavia Roberson and Farrah Franklin.

After five albums, three Grammys and more than a few lineup changes the band stopped touring in 2006.

Birthday girl: The group was celebrating the birthday of a their friend Tracy Robbins, who Roland tagged in a story on her Instagram with the caption, 'Celebration' With The Birthday Gal!!!!'

Birthday girl: The group was celebrating the birthday of a their friend Tracy Robbins, who Roland tagged in a story on her Instagram with the caption, 'Celebration' With The Birthday Gal!!!!'

Destiny's Child musical: And while Roland recently shut down speculation that the group would be getting back together, telling Us Weekly 'We haven¬Ņt talked about it,' there is reportedly a Destiny's Child musical in the works (Pictured in New Orleans, Louisiana in February 2013)

Destiny's Child musical: And while Roland recently shut down speculation that the group would be getting back together, telling Us Weekly 'We haven’t talked about it,' there is reportedly a Destiny's Child musical in the works (Pictured in New Orleans, Louisiana in February 2013)

And while Roland recently shut down speculation that the group would be getting back together, telling Us Weekly 'We haven’t talked about it,' there is reportedly a Destiny's Child musical in the works, according to Beyonce's dad and the band's former manager Mathew Knowles.

Survivor: The Destiny's Child Musical's will debut in the star's hometown Houston, Texas sometime next year, according to TMZ.

Beyond that, Knowles says there are also plans for shows on Broadway, London's West End as well as a world tour.

Two out of three: Two-thirds of girl group Destiny's Child were sitting in the audience for Janet's concert

Two out of three: Two-thirds of girl group Destiny's Child were sitting in the audience for Janet's concert

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Beyonce dances at Janet Jackson's concert in Vegas while celebrating Kelly Rowland's birthday with 

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