Kristina Ambartsumian was in attendance at the music festival, which became the scene of the largest shooting massacre in modern U.S. history.
Many of Hollywood's biggest stars are sending out prayers after Sunday night's terrible shooting that killed dozens, but are also using the moment to call for better gun control legislation.
"GUN CONTROL NOW. ENOUGH ALREADY," Billy Eichner tweeted.
ET was with Dhia for a tour of the MTV show's new studio in Times Square. The 'Total Request Live' revival premieres Mon, Oct. 2 on MTV, less than 24 hours after a horrific shooting in Las Vegas.
Many other stars, including Mariah Carey, Taylor Swift and Jake Owen, spoke out about the tragic news on Monday.
Ariana Grande is calling for gun control after the deadly Las Vegas shooting on Sunday night,
"Our thoughts and prayers are with the victims in Las Vegas and their families."
The gunman has also been killed.
The singer was on 'Good Morning Britian' when Piers Morgan broke the news.
Jason Aldean, Celine Dion, Jake Owen and more stars spoke out on social media following the attack.
