Shahzad Hasan (also known as Shahi Hasan), is a Pakistani musician, record producer, occasional actor, bass guitarist, backing vocalist and music industry executive. Co-founding the pop and rock band, Vital Signs, with keyboardist Rohail Hyatt in 1986, he earned recognition of playing bass guitar and as an original member of Vital Signs.

Can we draw the following conclusion?
Hyatt was the bass player for Vital Signs.
No