Bunnie Xo has been wowed by Jelly Roll's 300-lb. weight loss

Speaking to People, Bunnie shared: "We're watching a grown man live his life to the fullest for the first time.

"He doesn't have that extra weight on him, and he is literally just the happiest little bumblebee that is just flying through the universe right now, and he's doing everything that he hasn't gotten to do, and he's kicking ass. I can't wait to see how it's going to be in another 10 years, especially now with his newfound freedom.

"He was beautiful before, but now I catch myself drooling looking at him; he looks so good!"

Meanwhile, Jelly Roll recently credited Bunnie with saving his life, following his success at the Grammys.

The music star delivered a heartfelt speech after receiving the award for Best Contemporary Country Album for Beautifully Broken.

The singer told the crowd at the Crypto.com Arena in Los Angeles: "They're going to try to kick me off here, so just let me try to get this out...

"First of all, Jesus, I hear you, and I'm listening. Lord, I am listening. Lord.

"Second of all, I want to thank my beautiful wife. I would have never changed my life without you. I would have ended up dead or in jail. I would have killed myself if it wasn't for you and Jesus. I thank you for that."

Jelly Roll also opened up about the experiences that inspired his hit record.

The singer - who spent time in and out of jail during his younger years - said: "There was a time in my life, y'all, that I was broken. That's why I wrote this album. I didn't think I had a chance, y'all. There was days that I thought the darkest things. I was a horrible human."