A source told US Weekly Jenna "was constantly pointing at Steve when he was on stage and she was clapping and laughing and whispering to people next to her.”
"Her smile was huge and she looked so proud of him," the onlooker continued.
Another source told People they overheard Jenna’s mom Nancy raving about Steve.
She allegedly told a friend she’s loved him as a Broadway actor for years.
Steve, whose role in Once landed him a Tony Award for Best Lead Actor In A Musical, stars as Jamie (Colin Firth’s character in the movie) in the live production.
What do you think of Jenna and her mom supporting her man? Let us know in the comments.