This clipart image is transparent backgroud and PNG format. The catchy song made it sound a lot like the two characters were once a couple, which seemed further verified when the item stolen from Princess Bubblegum turns out to be a T-shirt from Marceline that the princess sleeps in each night. The Lich - Adventure Time Lich Voice Actor is one of the clipart about adventure clipart,bed time clip art,coffee time clipart. When Bubblegum objects, Marceline launches into a song that sarcastically apologized for not treating Bubblegum like a goddess, asked if Marceline was not sweet enough for her, and proclaimed that Marceline shouldn't have to prove anything to her. This speculation kicked into high gear after the third season episode 'What Was Missing.' A mysterious creature steals personal items from different characters and then hides behind a door that can only be opened by a 'song from a genuine band.' The characters form an ersatz band, and veteran singer Marceline starts singing a breezy song about sucking the color off of Princess Bubblegum's face. The episode guest starred Lou Ferrigno as Billy, and Ron Perlman as the Lich. One of the longest-running areas of discussion surrounding Adventure Time is whether Marceline the Vampire Queen and Princess Bubblegum were ever a couple in the past.