Ultimate Vegita

Fusion with the fusion dance and the potara earings. Goku and Vegeta used the fusion dance to transform into Gogeta but the transformation was not over. Attaching the potara earings aswell causes Gogeta to have assets of Vegito which has made Gogeta twice as powerful. Gogeta transforms into Vegita.

Appearance
Vegita keeps Gogeta's top half but gains Vegito's bottom half. Vegita's hair turns a very dark purple when not in super saiyan form and turns a very light golden purple when in Ultimate Super Saiyan mode. Vegita also gains the ultimate move: Final Big Bang Kamehameha which is proven the most powerful move in the Dragonball z universe. It destoys every particle in the enemies body instantly.

Taking off the potara earings will cause Vegita to transform back to Gogeta which you then would need to wait 30 minutes for the fusion to wear off. The fusion dance has an unlimited use when the potara earings are worn and the fusion will not work if there are 2 fusion potara earinged warriors.

Vegita Vs. Immortal Frieza
Frieza is revived by a group of followers who have recieved the Dragon Balls from earth. Frieza heads for new namek and obtains the Dragon balls and makes his wish just before Goku could arrive. Frieza wishes for immortality and defeats a worn-out Goku who has been fighting Frieza for a while.

Vegeta arrives and fuses with Goku, only to find that the stardust breaker is not strong enough to disintergrate Frieza. Frieza fights with Gogeta and ends up defeating him aswell until the supreme kai lends Gogeta a new pair of potara earings that allow Gogeta to fuse once more.

Gogeta uses these earrings and transforms into Vegita who then turns Ultimate Super Saiyan and uses the ultimate move which destroys Frieza.