An exclusive video, obtained by EnquirerPlus, shows Bobbi Kristina Brown, the 19-year old daughter of the late Whitney Houston, smoking weed from a 3-foot bong.

The video was reportedly shot back in March of last year, while Bobbi was partying with friends who were attending college in Statesboro, Georgia.

"Give me the lighter,” she says in the video, and then lights the bong. She inhales deeply and coughs before taking another hit.

“Bobbi Kristina was staying with friends at the school and she brought along a big bag of pot for the party,” said a source who was at the party that night. “The party was well underway by the time I got there around 11 p.m... Between tokes, Bobbi was drinking shots of Grey Goose and Skyy Blue vodka, and sipping a mixed vodka drink... When I left at 6am the next day, she was still partying hard."

Watch the video at Radaronline.com