Julius Anton (Jules) Deelder (born 24 November 1944) is a Dutch poet, spoken word poet, writer and musician. His poems cover topics such as life in the city of Rotterdam, drug use, and jazz. He is well known in the Netherlands for his live performances and appearances in Dutch popular media. He collaborated with musicians and bands such as Herman Brood, Benjamin Herman and Bas van Lier to record and perform his poetry. His prominent role in the cultural life of Rotterdam earned him the nickname "night mayor of Rotterdam". In 2018, Deelder started a new collaboration with his old friend and legendary Saxophone player Boris van der Lek (known for his 2005 jazz classic Blue & Sentimental and his work for Golden Earring, Herman Brood & His Wild Romance, Tough Tenor). The vintage microphones picked up originals tracks and standards the duo recorded with the assistance of guitarist Cok van Vuuren (Ocobar, Mathilde Santing, Fay Lovsky), bassist Peter Wassenaar and drummer Arend Niks (Corrie van Binsbergen, Orkater). Together with engineer/producer Frans Hagenaars, they made a wonderfull authentic jazz album that sometimes swings in a melancholy mood and at other times excites furiously.