Josh Groban Gushes Over Girlfriend Kat Dennings: 'We Share a Great Sense of Humor'

The singer opened up about his girlfriend, his new album, and his love for Kanye West's Twitter rants.

Best-selling musician Josh Groban has a lot going on in his life. He's got a new album out called Stages, which is a collection of covers of beloved songs from Broadway musicals, he recently performed on Dancing With the Stars, and he's dating one of the most beautiful and talented actresses in Hollywood, 2 Broke Girls star Kat Dennings.

The multi-platinum certified singer sat down with ET's Brooke Anderson on Wednesday to talk about his new project, his love of comedy, and his burgeoning relationship.

VIDEO: New Couple Alert! Josh Groban Opens Up About Girlfriend Kat Dennings

"We share a great sense of humor," Groban said of Dennings. "No one makes me laugh more than she does."

The 34-year-old singer and the 28-year-old actress have been dating since October 2014, and made their first official debut as a couple the Carousel of Hope Ball in Beverly Hills. The couple later posted photos of themselves to Instagram with the caption, "I ship it," and, "I ship it too."

"I'm very lucky my girlfriend has joined me tonight," Groban told ET back in October. "It's her first time hearing me sing. So I'm going to do some extra warmups tonight so I don't suck."

VIDEO: Kelly Clarkson and Josh Groban Sing the Perfect Cover of 'Phantom of the Opera's' 'All I Ask of You'!

Talking with Brooke, Groban also opened up about that sense of humor that attracted his lovely girlfriend to him in the first place.

The singer doesn't shy away from showing his comedic side. Groban has even appeared on Jimmy Kimmel Live! to sing Kanye West's tweets in one of the funniest segments ever.

"I am on Twitter exclusively for [Kanye's] Twitter rants," Groban joked, adding. "Anytime Kimmel or somebody gives me the opportunity to kind of have a laugh and have fun and not to take it so seriously… I always have a great time doing it."

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Check out the interview for more from the beloved musician on his new album Stages, which debuted at No. 2, and his collaboration with Kelly Clarkson.