A wikipedia summary of the climactic moments of Grease 2
I just thought this was well done.
At the June Moon Talent Contest (as summer graduation 1962 approaches), the T-Birds chase the mysterious biker into a construction site ("Dead Man's Curve"), from where he is forced to jump into the night. The T-Birds look around to try to find their victim. Everyone assumes he has died even though there is no real evidence to support the fact, and Stephanie is devastated. Later during the talent show, Stephanie "spaces out" (possibly due to grief) and turns up singing "Love Will Turn Back the Hands of Time" in the middle of the Calendar Girls' (Pink Ladies') performance. This appears to the audience to be a solo, but to Stephanie, it is a duet with her recently lost love, the mysterious biker, who now seems to be in Biker Heaven.
Johnny and Stephanie are crowned king and queen of the talent show. At the Rock-a-Hula Luau the next day, however, the Cycle Lords reappear, threatening to destroy everything within sight. Out of nowhere, the mystery biker reappears, to Stephanie's relief and happiness. He finally reveals himself as Michael.
At the June Moon Talent Contest (as summer graduation 1962 approaches), the T-Birds chase the mysterious biker into a construction site ("Dead Man's Curve"), from where he is forced to jump into the night. The T-Birds look around to try to find their victim. Everyone assumes he has died even though there is no real evidence to support the fact, and Stephanie is devastated. Later during the talent show, Stephanie "spaces out" (possibly due to grief) and turns up singing "Love Will Turn Back the Hands of Time" in the middle of the Calendar Girls' (Pink Ladies') performance. This appears to the audience to be a solo, but to Stephanie, it is a duet with her recently lost love, the mysterious biker, who now seems to be in Biker Heaven.
Johnny and Stephanie are crowned king and queen of the talent show. At the Rock-a-Hula Luau the next day, however, the Cycle Lords reappear, threatening to destroy everything within sight. Out of nowhere, the mystery biker reappears, to Stephanie's relief and happiness. He finally reveals himself as Michael.