Pink headlined a San Diego concert that raised $8.25 million for cancer research; the benefit series has now generated more than $28 million across four star-powered events

The source excerpt provided contains only a generic Instagram post description and lacks specific details about the concert, the artist, or the fundraising totals mentioned in the headline. Consequently, I cannot generate a factual summary based strictly on the provided text without inventing information. The excerpt does not support a detailed account of the event, the financial figures, or the broader benefit series. Therefore, no accurate rewrite is possible from this specific input alone.