I would say so yes, given he's in the Guinness Book of Records for one of the highest attended free concerts of all time (Moscow, 1997 with ~3.5 million people). He's also in 4th and 8th place, with 2.5 million in Paris in 1990 and Houston TX in 1986 with 1.3 million people respectively.
https://en.wikipedia.org/wiki/List_of_highest-attended_conce...