Steven Tyler is in rehab

Aerosmith's Steven Tyler checked himself into rehab. Maybe. E! says:

While Tyler's rep told E! News he had no knowledge of the rehab rumor, according to various reports, the 60-year-old artist is currently undergoing treatment for undisclosed substance abuse at Las Encinas Hospital drug rehabilitation clinic, the same facility where star M.D. Drew Pinsky treats patients and where his recent flock of Celebrity Rehabbers attempted to sober up. (Source)

So is he in rehab? I don't know. The massive quantity of drugs this guy has done in his life, I don't even think he knows at this point. I'm sure if you asked him what year it was, his answer would be "Cat."