Misc: What organs does Silicosis affect?

Questions

name the band made-up of the five also-rans from the popstars tv series?

which instrument does tv chef jamie oliver play in his pop group?

which actor plays with the band dog star?

who penned the song freedom, written as a fund-raiser for new york police and firemen?

which band had top ten hits with robert de niro's waiting and i want you back?