In an interview with Rolling Stone, Tyler says he and Joe Perry did drugs together in 2008 after years of sobriety. Aerosmith had been working on a new album, which never developed.
Tyler says Perry was so impaired by snorting prescription pills, he couldn't even play his instrument. Tyler says he was no better - he couldn't sing.
Perry declined to comment to Rolling Stone and didn't return a request for comment from The Associated Press on Tuesday.
Tyler is now a judge on "American Idol." He's releasing an autobiography, "Does the Noise in My Head Bother You?" next month.
The 63-year-old rocker says he's sober now.