Miley Cyrus was hospitalized Tuesday night due to what a source told E! News was "an absolutely horrible reaction" to medication, causing her to cancel a scheduled concert in Kansas City.

Cyrus later sent a tweet to fans apologizing for the cancellation. "Kansas I promise Im as [heartbroken] as you are. I wanted so badly 2 b there 2night.  Not being with yall makes me feel s--ttier than I already do," the tweet read.

This is the latest health issue to plague the 21-year-old singer in recent weeks. She was forced to cancel a show in Charlotte earlier this month after coming down with the flu.

Kansas City TV station KMBC said that all who bought tickets will receive refunds, but did not say if the concert would be rescheduled.