The fire broke out at the back of the vehicle during a stop in Bloomington, Illinois, when a generator overheated.
Kreayshawn posted a photo of firefighters putting out the flames to Twitter.
WE ALIVE BUT HOW IS OUR BUS IS ON FIRE????!!!! twitter.com/KREAYSHAWN/sta…— KREAY♥KARDASHIAN (@KREAYSHAWN) December 1, 2012
She revealed the incident had claimed all of her clothes, but the 23 year old refused to cancel her "Group Hug" tour stop in the city that night and was forced to pull together a makeshift outfit to perform in, telling fans, "Don't hate on my look tonight. All my clothes was burnt up."
She later returned to Twitter to sympathise with others who had suffered similar accidents, writing:
My heart really goes out to people who have lost their homes to fires after today. Even though it was just the tour bus. I can only imagine.— KREAY♥KARDASHIAN (@KREAYSHAWN) December 1, 2012
Kreayshawn picked up a new tour bus on Saturday, and was able to make it to a gig in Chicago on time.
Photo Credit Getty Images