In an interview with USA Today, the Rolling Stones legend revealed that he is a social networking addict.
"I spend way too much time on the computer and not enough time playing the guitar. There's an underlying problem of this screen life taking over all of your life," he said.
"It's easy to keep in touch with people, some of whom I wish I'd never kept in touch with. But there they are on Facebook! You can spend a lot of time on that when you should be doing something else."
Jagger also has an account on Twitter, but he admitted that he doesn't update the microblogging page himself, adding: "But, really, who does?"
The singer said that a rumoured 2012 tour by the Rolling Stones is "not on the table", as he is focusing on SuperHeavy, the supergroup with Dave Stewart, Joss Stone, Damian Marley and Slumdog Millionaire composer AR Rahman.
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Watch a video of SuperHeavy in the studio below: