 And during the first Caspian Jazz and Blues Festival in Azerbaijan in 2002, he performed his recorded version of "Imagine," his tribute to its writer, John Lennon.Thielemans was well liked for his modesty and kind demeanor in his native Belgium, and was known for describing himself as a Brussels ""ket,"" which means "street kid" in old Brussels slang.Thielemans received a joint honorary doctorate from the Université libre de Bruxelles and the Vrije Universiteit Brussel, Belgium.