True Saiyans Fight Alone

In the rubble of the destroyed Earth, Kid Buu reforms and goes seeking high energy levels which must be the two Saiyans. He eventually finds his way to Grand Kai's planet and kicks around Krillin, Yamcha, Olibu, and Pikkon. Kibitokai offers Goku his Potara Earrings so they can fuse again, but Goku refuses, saying true Saiyans fight alone. Before anyone can object, Vegeta smashes another earring. The two power up and just as Kid Buu was going to blow up Grand Kai's world, he teleports to Supreme Kai's to fight the Saiyans.