Grease: Rise of the Pink Ladies tells the musical origin story of the titular girl gang a few years before the events of Grease. After a summer fling turns into a disaster, four misfits come together to change Rydell High for the better. Despite its premature cancellation, Rise of the Pink Ladies brought something new to the Grease franchise while making plenty of references to its predecessors.
Source:https://www.cbr.com/best-grease-rise-of-the-pink-ladies-references/