Yeah, Missy
"Can't Wait" sounds nothing like Lauryn Hill, like at all, lol.
"Can't Wait" sounds like a Missy vibe through and through, even the way Doja stacked her vocals on the song. it's the way Doja sings on it that sounds like Missy, it's her approach.
a few examples of Missy songs that Missy sings on:
"Beep Me 911" (featuring 702),
"Hit Em Wit Da Hee",
"Crazy Feeling" (featuring Beyonce'),
"All N My Grill", (featuring Big Boi and Nicole Wray),
"Friendly Skies" (featuring Ginuwine)
"I'm Talkin'"
"Meltdown"
"Time and Time Again"