Vegeta going Ascended Super Saiyan while in his battle with cell, but of course his arrogance gets the best of him and he lets Cell go to his Perfect Form. Vegeta then tries to attack the complete Cell only to be shocked due to the fact that he is extremely stronger than him.
I do not own the Dragon Ball Series, all credit goes to the creators and owners of the show. This has been uploaded for entertainment purposes.
Update: 2/24/16 Thank you guys for helping this video hit 2,000,000 views! Long live DBZ!