The cancellation of the launch party for Beyonce’s “I AM…” tour, first scheduled for this Saturday at M2, was a result of a breach of contract by the promoter. Beyonce never had a contract with the club itself and no one in her camp dealt directly with the venue. The superstar was never scheduled to perform but was to serve as a co-host and introduce singer/songwriter Solange’s performance. Patrons were falsely promised a performance by Beyonce.
but did they even promote it as a performance? the thing DP posted said appearance
They were sueing her because she wasn't performing. They guy told his guest she was but the contract said Solange was. He used Beyonce to get people to come.