Jacoba Adriana Hollestelle (16 January 1937 – 7 April 2002), known professionally as Conny Vandenbos, was a popular Dutch singer.

[1] Vandenbos made her solo debut in the KRO radio programme Springplank, a showcase for young talent, in which she performed French chansons.

One year later, Vandenbos finally achieved chart success with her first hit single, "Ik ben gelukkig zonder jou".

During her contract at Basart, several albums were released, such as Een Vrouw Van Deze Tijd and Zo wil ik leven.

A duet with Janis Ian, "Don't Leave Tonight", reached number 17 in the Dutch charts in December 1980.