See The Ring!: 'E! News' Host Maria Menounos Engaged to Longtime Boyfriend Keven Undergaro

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Maria Menounos is officially engaged!

The E! News host was promoting her new cookbook on Howard Stern's radio show this morning when her boyfriend of 19 years, Keven Undergaro, popped the question on air!

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After talking about their relationship with the shock jock, including the fact that her dad was a "little upset" at first that he isn't Greek, Keven surprised the 37-year-old with a ring.

"Are you about to propose to me? I'm going to die," she said when Howard handed the microphone to Keven. "Oh my God, it felt like he was about to propose right now."

Maria was still in shock when the film director began professing his love for her. "It reminds me just how much I do love you, and although I said that this isn't a proposal, I want to ask you something," he said. "Would you make me the happiest man on earth and would you marry me?"

Keven also revealed why he decided to propose on the controversial XM radio show.

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"I love you so much, and this show's meant so much to both of us," he said, explaining how he once told Maria, "'One day you will be on that show and you will be a star and here you are'...Why not make it official now? Will you honey? Will you accept?"

After Maria said yes, Howard brought in her parents, who are celebrating their 41st wedding anniversary!

(Photo Credit: Snapchat)

And there's definitely no complaining when it comes to the ring. "Oh my God! This is so beautiful, and I hate engagement rings!" Maria said, with co-host Robin Quivers adding, "It's a big ring!"