Kat Dennings and Josh Groban are reportedly dating!

The 28-year-old "2 Broke Girls" star and the 33-year-old singer-songwriter were both present at the Carousel of Hope Ball in Beverly Hills Saturday, Oct. 11, and E! News reported that the two attended the Patron Tequila-sponsored event together as a couple.

"They were so cute together!" a source told the entertainment and celebrity news site of the pair. "They were adorable on the carpet. She was whispering in his ear a lot and they seemed really happy."

At one point during the event, the "You Raise Me Up" hitmaker was spotted putting his hand on the small of Dennings' back as they explored the event together, People reported.

And during Groban's set, the "Thor" star watched "with clear admiration, leaping to her feet to clap and cheer loudly" for her rumored beau as his performance wrapped up, an eyewitness told People.

"Kat and Josh recently started dating and are having a lot of fun," a tipster told Us Weekly.

After the event, Dennings Instagramed a photo of her getting cozy with Groban on the red carpet, writing, "I ship it."

The "Rising Star" host also shared a snap of them two on the red carpet with the caption: "I ship it too."

Groban seemed to be overjoyed by what happened at the event that he took to Twitter the following day, writing, "I just shipped my pants." Dennings obviously loved it as she immediately retweeted his joke.

Dennings previously dated Nick Zano, who guest-starred on her hit CBS comedy. Groban, meanwhile, dated "Mad Men" star January Jones from 2003 to 2006, and had a fling with singer Katy Perry.

In April 2013, Groban joked to Chelsea Handler that he was dating his dog, Sweeny. "He's kind of the love of my life at the moment," he said at the time.