I love a good reality show reunion — and tonight’s “Celebrity Rehab” reunion (March 13) on VH1 hopefully won’t disappoint.

Get a sneak peek of the “Celebrity Rehab” reunion show in the preview video above.

If you’ve been following “Celebrity Rehab,” it’s really been eye-opening, as far as reality shows go. No fluffy competitions or lame drama here — this is the real stuff. And now we get to find out if Dr. Drew’s fine work paid off or not.

While it’ll be great to get a status update on the “Celebrity Rehab”-ers, we know with certainty what happened to one of the participants — Jessica Sierra, who appeared to be getting her life on track on the “Celebrity Rehab” finale show, clearly derailed at some point. Since filming “Celebrity Rehab,” Jessica Sierra has been arrested and in jail, a sex tape of the former “American Idol” wannabe surfaced, and she headed back to rehab again.

Let’s hope the other participants made out a little better when we catch up on the “Celebrity Rehab” reunion show, six months later: Brigitte Nielsen, Joan “Chyna” Laurer, Jaimmee Foxworth, Seth “Shifty” Binzer, Mary Carey, Jeff Conaway and Ricco “Suave” Rodriguez.