Princess Bubblegum patches up her rocky relationship with Lemongrab in "" by making him a , so he will have a friend who truly understands him. At the end of the episode, the princess bids them a fond farewell and they both invite her to visit anytime, indicating that the three of them are on good terms. In "," however, she sends Finn and Jake on a mission because the Lemongrab clones have run out of food. Finn and Jake, upon arriving, find out that the Lemongrabs have been using food to create candy people, because Princess Bubblegum accidentally left the recipe for making candy people there. Luckily, after turned himself into food after almost destroying the Candy Kingdom, Princess Bubblegum erased the formula from their minds.
In "," the Candy Kingdom had its very first election. The election was between Princess Bubblegum and the . PB did not campaign, as she thought the Candy People knew she loved them and that they were smart enough to understand the King was a bad person (which he is). Unfortunately, the King convinced everyone to vote for him, causing her to lose the election. PB, unable to confront the candy people after seeing their innocent faces, turned in her crown and left (along with ) to an built by her , which they worked hard to fix and make it into a nice place to live until she got back in business as the princess of the Candy Kingdom.
In "," while chasing "varmints" that were messing with her bioengineered pumpkins, she and Marceline come across the old Candy Kingdom crystal mines, where Princess Bubblegum had caught Marceline graffiting the walls back before they stopped being friends. Marceline had convinced her to leave her own mark on the wall, which reads "Marceline made me write this." It is also revealed that the two would tell jokes and stories for hours down there, before Princess Bubblegum got too busy with Princess business.
In the final episode of , "," (who had been mistreated by the King of Ooo) pushed the King of Ooo into the fire place causing him to melt. Crunchy then took charge and ordered the candy citizens to help PB (along with Marceline, Finn, and Jake) destroy . After that, Bubblegum usurped Crunchy and got her throne back so she could put Peppermint Butler back together after he had been smashed into pieces during the explosion at the cabin. Soon Princess Bubblegum was back as the princess of the Candy Kingdom and the King of Ooo was melted by Crunchy.
|Adventure Time character|
|First appearance||Adventure Time (rough-cut)
"Slumber Party Panic" (official)
|Created by||Pendleton Ward|
|Voiced by||Hynden Walch
Paige Moss (pilot)
Isabella Acres (young)
|Full name||Princess Bonnibel Bubblegum|
|Nickname(s)||"PB" , "Peebles" , "P-Bubs", "Bonnie"|
|Species||Gum Golem (Candy Elemental)|
|Occupation||Monarch of the Candy Kingdom
|Title||Princess of the Candy Kingdom|
|Nationality||the Earth (later The Land of Ooo)|