Plot details are being kept under wraps for this episode, but we can’t wait to see it!
45 pictures inside of Grant Gustin, Melissa Benoist, and more on set…
After all, the two have spoken very highly of each other before.
He also admitted to loving how they had the same nerdy interests.
Meanwhile, Us Magazine notes that Dennings, 30, thought Groban was “very witty” and loved his Twitter comebacks.
actor and his girlfriend, actress Leah Renee, are expecting their first child together, Renee's rep exclusively confirms to ET.
PHOTOS: Hollywood's Hottest Baby Bumps Through the Years So far, the two have been low-key about their relationship, although Renee, 30, has confirmed she's pregnant on social media.
Their relationship eventually ended, which was apparently one of the reasons Nina Dobrev decided to leave the show.
They played siblings (okay, not traditional ones) on Dexter, but Michael C.PHOTOS: Stars who found love on set "Kat and Nick are getting to know each other right now," a source explains of the couple, who play love interests on the CBS comedy . "My boyfriend and I left the theater feeling like really great people," Dennings tweeted. The couple took their budding romance public January 2 when they sat courtside (and next to Ashton Kutcher! They were introduced to each other by Dennings’ “2 Broke Girls” co-star Beth Behrs.On the set-up, Dennings once said that “[Behrs] thought we were both, you know, nerds.Dennings previously had a relationship with “What I Like About You” star Nick Zano from 2011 to 2014.