PROMISE MADE, PROMISE KEPT TMZ.com
Kayla Harrison's sittin' atop the MMA world ... and the newly crowned women's bantamweight champ is talking all things UFC 316 and beyond -- from her insane weight cut to her next fight vs. Amanda Nunes!
34-year-old Harrison joined Babcock on the TMZ Sports TV show (airs nightly on FS1) ... just days after she dominated now-former champ Julianna Pena in the co-main event, winning by second-round submission.
We asked her -- with a couple of days to digest the enormous accomplishment -- how she was feelin'?