But one thing that miraculously didn't burn up was her Bible.
"Everything back there -- my toiletries, my iPad, a lot of things including a lot of our clothes that we were supposed to wear this weekend -- were ashes, disintegrated," she said. "And for whatever reason -- I firmly believe that God is an amazing God -- the Bible was intact and not a page was missing. I can't really talk about it without crying."
Hillary also Instagrammed a picture of the Bible after the accident, writing, "My faith is forever deepened because of today."
Still, despite yesterday's stressful day, Hillary said she's currently feeling "great."
"I slept well," she said. "I woke up very, very thankful for, you know, how everything went yesterday. It could've been a very different outcome and thankfully everyone was safe and sound, family's good."
And it definitely sounds like she got lucky.
"I was asleep in the back of the bus, evacuated as fast as I could," she recalled about the incident. "Thankfully I was wearing decent pajamas and then it just erupted. It happened so fast. The first person to show up to the scene was actually the assistant fire chief of the county, which was a true miracle."
The ACMS are airing on Sunday, April 19 at 8 p.m. ET/7 p.m. CT on CBS. Watch the video below to see the AT&T Stadium in Arlington, Tex. -- a space almost 55 times the size of the White House -- amazingly transform for the big show.