From Rocklopedia Fakebandica
Wow Comics #15 (July 1943). When sudden sensation Lauritz Largo steals jobs from him, he and his goons kidnap him so he'll miss his radio gigs and shows.
When he finds out Largo's successful voice is because he has a cold, he tries to poison Largo with tainted cough drops! That failing, he and his goons try to get Largo healthy.