Definitely not Steve Perry! The front row (L to R) is Paul Rodgers, Simon Kirke, *Mick Ralphs* and Phil Lynott.
Bad Company's Boz Burrell is back row far left, then Scott Gorham, Eric Clapton and Robert.
Maybe someone can fill in the next 3.
The tallest, in the very back, is John Illsley of Dire Straits, then Mark Knopfler in the striped sweater, and his brother David.
It was taken at a launch for the benefit album, The Summit.
All proceeds from the 1979 lp were donated to "The Year of the Child", a charity designated to help sick and disabled children.
It featured Led Zep's Candy Store Rock and Bad Company's Rock & Roll Fantasy in addition to a song each from ELO, Wings, Gerry Rafferty, Dire Straits, Eric Clapton, Elton John, Cliff Richard, Supertramp, Thin Lizzy, YES and Pink Floyd.