The Sitting Stones?

"You might have seen that meme/photo of the Rolling Stones that's going around, the one where Sir Mick is holding a sign that says "Meditate every day!""

http://theworsthorse.com/2012/06/the-sitting-stones/

http://theworsthorse.com/2010/09/mick-jagger-reportedly-practises-buddhism-and-meditation-every-day/