In reply to Nicky.

I’m dead ?

But that’s true, most people’s signature songs are solo songs and do not have features:

Britney - BOMT/Toxic
Mariah - Hero/We Belong Together
Ariana - Thank u, next
Katy - Roar/firework
GaGa - Pokerface/Just Dance/BTW
Whitney- I’ll always love you
Beyonce - Irreplaceable/Single Ladies/irreplaceable

I could go on and on but moral of the story is your signature song should not be a feature. ?