Kat Dennings and Josh Groban are dating!

The new pair walked the red carpet together on Saturday at the Carousel of Hope Ball in Beverly Hills.

According to E! News, which confirmed that the "2 Broke Girls" actress, 28, and the "Brave" singer, 33, are officially an item, a source said the couple was "so cute together!"

The pair looked stunning in matching ensembles during the evening. Dennings wore a floor-length black gown with a plunging neckline, while Groban wore a dapper black suit with a thin black tie. The couple reportedly remained close during the event.   

"They were adorable on the carpet. She was whispering in his ear a lot and they seemed really happy," added the onlooker.

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

Groban reportedly sang three songs at the benefit. The singer later tweeted, "Lovely night all around. Always happy to support Barbara Davis and her ‪#CarouselOfHope ball to raise money for Diabetes research."

Groban and Dennings then got a little playful on social media.

"I just shipped my pants," Groban wrote on Twitter. Dennings then took to her Instagram account, posting a photo with her new boyfriend that she captioned, "I ship it."

Groban soon responded by posting another pic of the couple, captioning his, "I ship it too."

Before this relationship, Dennings dated Nick Zano, who guest starred on "2 Broke Girls." As for Groban, he reportedly dated "Made Men" star January Jones and had a short romance with Katy Perry.

Congrats to the happy couple!