"Apparently people plan their wedding like years in advance! I found this place, I found a wedding planner, and they were like, It's going to be like $300,000," King joked. "Then I was like, 'Babe, Vegas is like a quick flight.' So I don’t know."
"I'm just going to let my mom handle it," she added with a laugh.
While they aren't yet married, the cute couple have already made their declarations of love pretty permanent -- in the form of huge tattoos! The "Ex's & Oh's" singer showed off her new body art on the red carpet, flaunting the huge knife-through-a-heart tattoo (complete with her fiance's name) inked across her chest.
"It's not even a fake tattoo, it's real," King revealed. "He just got my name tattooed on the front of his neck, so it's fair."
During her impressive duet with Bentley, King rocked a shimmering black gown and plucked away skillfully on a gold banjo while the 40-year-old country crooner kept things casual in a black leather jacket and jeans, as they sang the new single off Bentley's latest album, Black.
"I thought if I ever got engaged it would be like, 'I dare you to marry me in some dumpster' or whatever," the 26-year-old singer said. "But like [on a] sailboat under the Golden Gate Bridge? It's beautiful!" To hear more from the soulful songstress -- including how she wants to have 19 kids -- check out the video below.