Same title, different songs!
British Invasion!
THE HOLLIES -"Too Many People" (1965)
(There's also a Manfred Mann song somewhere.)
Garage Rock!
THE LEAVES -"Too Many People" (1965)
Garage Rock!
LITTLE JOHN & THE MONKS -"Too Many People" (1965)
iTunes preview
Boogie Rock!
PAUL & LINDA McCARTNEY -"Too Many People" (1971)
(Paul is playing all the music.)
Gospel Soul!
REVELATION -"Just Too Many People" (1975)
(Remade by Melissa Manchester.)
Glam Metal!
VARDIS -"Too Many People" (1983)
Alt Pop!
PET SHOP BOYS -"Too Many People" (1993)
Recently Wet Wet Wet had a big Soul Pop hit with the same title.