Singer Olli Lindholm (born March 19, 1964 in Pori, died February 11, 2019) formed in the beginning of 1980's in Pori, Finland his legendary acts Appendix and the later one Yö -band. Jussi Hakulinen was a co-writer on Appendix songs like Ei raha oo mun valuuttaa. Hakulinen was also a member of Yö. Between a lot of years with Yö, Olli became also as solo-artist. He participated in a celebrity reality show Vain Elämää.