A lot I haven't heard of but you may have some favourites you could look up.
Sample of the "S" music stars:
SBaby Spice (Spice Girls) - Emma Lee Bunton
Ginger Spice (Spice Girls) - Geraldine Estelle Halliwell
Posh Spice (Spice Girls) - Victoria Caroline Adams [beckham]
Scary Spice (Spice Girls) - Melanie Janine Brown
Sporty Spice (Spice Girls) - Melanie Jayne Chisholm
Dusty Springfield - Mary Isabel Catherine Bernadette O'Brien
Paul Stanley (KISS) - Stanley Harvey Eisen
Edwin Starr - Charles Hatcher
Ringo Starr - Richard Starkey
Cat Stevens - Steven Demetre Georgiou (1979 - Yusuf Islam)
Ray Stevens - Harold Ray Ragsdale
Rod Stewart - Roderick David Stewart
Stephen Stills - Stephen Arthur Stills
Sting - Gordon Matthew Sumner
Michael Stipe (R.E.M.) - John Michael Stipe
Angie Stone (The Sequence) - Angela Laverne Brown
Joss Stone - Joscelyn Eve Stocker
Sly Stone - Sylvester Stewart
Joe Strummer (The Clash) - John Graham Mellor
Levi Stubbs - Levi Stubbles
Donna Summer - LaDonna Adrian Gaines