Wearing a revealing metallic dress and stiletto, over-the-knee stocking boots while letting her long locks flow free, Grande kissed her fiancé, who went casual in a NASA sweatshirt and black sweatpants.
At another point, Grande, 25, stared adoringly at Davidson, 24, as he wrapped his arm around her and leaned in.
The duo also shared a laugh as they prepared to walk into New York City’s famed Radio City Music Hall.
Inside the event, the pair looked super cute and cuddly, smiling and whispering together during the show.
Grande also gave her fiancé a shout out as she was accepting the award for Best Pop.
“Pete Davidson thank you for existing,” she remarked at the end of her speech.
PEOPLE confirmed that Grande and Davidson had recently started casually dating back in late May. Then, just weeks later on June 11, PEOPLE discovered they had gotten engaged after the comedian popped the question with a massive 3-carat diamond ring.
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In July, Grande, who will be performing “God Is a Woman” at the VMAs, defended herself and her relationship after fans criticized her decision to name one of the tracks on her new album Sweetener after the Saturday Night Live star.
“He’s my fiancé. This is my album. I’m an honest and emotional artist and human being and if my openness in my work isn’t for you, that’s OK,” she wrote to one fan. “I won’t be offended. Still wishing y’all all the love in the world.”
WATCH: Pete Davidson’s Ex Has a ‘Replica’ of His Late Father’s Pendant — Ariana Grande Has the Real One
Shortly after accepting her fiancé’s proposal, Grande told fans: “I have everything I ever wanted.”
Check out PEOPLE’s full MTV VMAs coverage to get the latest news on one of music’s biggest nights.
The 2018 VMAs will air live from Radio City Music Hall in New York City on Monday, Aug. 20 at 9:00 p.m. ET/PT.