did any band member undergo a surgery?
Yes. Mick Jagger underwent heart valve replacement surgery
The Rolling Stones
 In March 2019, it was announced that Jagger would be undergoing heart valve replacement surgery, forcing the band to postpone the 17-date North American leg of their No Filter Tour. On 4 April 2019, it was announced that Jagger had completed his heart valve procedure in New York, was recovering (in hospital) after a successful operation,
what are the band members names of the rolling stones Brian Jones, Mick Jagger, Keith Richards, Bill Wyman, Charlie Watts and Ian Stewart what was their first hit? "The Rolling Stones No. 2"
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The Rolling Stones [SEP] 2017–present: No Filter Tour and Jagger's surgery
In November 2018, the Stones announced plans to bring the No Filter Tour to U.S. stadiums in 2019, with 13 shows set to run from April to June. In March 2019, it was announced that Jagger would be undergoing heart valve replacement surgery, forcing the band to postpone the 17-date North American leg of their No Filter Tour. On 4 April 2019, it was announced that Jagger had completed his heart valve procedure in New York, was recovering (in hospital) after a successful operation, and could be released in the following few days. On 16 May, the Rolling Stones announced that the No Filter Tour would resume on 21 June with the 17 postponed dates rescheduled up to the end of August.