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 The speculation about a surprise guest on the closing night of the Democratic National Convention reached a fever pitch, with lawmakers joining into guessing game of whether Beyoncé would join the ranks of celebrities descending on Chicago to rally behind Vice President Kamala Harris. 

At a Democratic Congressional Campaign Committee briefing for donors and lobbyists on Thursday, a central question was whether Beyoncé would perform right before Harris delivers her acceptance speech.

Beyoncé’s sensation “Freedom” has become a soaring anthem for Harris — in music and message — in the opening month of her presidential candidacy as she has drawn audiences of tens of thousands of supporters.

Pink is set to sing “What About Us,” two officials familiar with convention planning tell CNN, while The Chicks are scheduled to perform the national anthem.

But even with the anticipation running high for those musical stars, speculation about Beyoncé didn’t diminish in the hours before delegates made their way to the convention floor. 

Convention officials, many of whom don’t know themselves about the closely held guest list, declined to comment.