Kelsey Bateman, who once appeared on Bret Michaels' reality show 'Rock of Love Bus,' has died at the age of 39.

New York Post, citing TMZ, reported that Bateman passed away "unexpectedly recently." The cause of death has not been shared.

Bateman was only 21 when she joined the VH1 dating show in 2009. The season followed the Poison singer and a group of women travelling with him on tour buses while competing for his heart.