(King Features Syndicate, 1980s) Original pen and ink merchandising artwork by Ned Sonntag featuring Betty Boop on stage, with "Boop-Oop-A-Doop!" above. Accomplished in pen and ink on off-white 11 x 14 lightweight cardstock, stamped in the lower left by King Features Syndicate. In fine condition. Sonntag began his cartoonist career in the underground comix scene, later becoming a leading illustrator for Betty Boop merchandising art, distributed by King Features.