LOS ANGELES (ES) Megan Fox has joined Twitter. The ‘Transformers’ star has finally given in and signed up to the social networking site, posting a perplexed-sounding inaugural tweet, asking what all the fuss is about. She wrote: ‘’I’m incredibly late to the party but I’m here nonetheless, so what now?’’ Home bird Megan - who has four-month-old son Noah with her husband Brian Austin Green - has added a description on her page reading ‘’Lover. Healer. Mother.’’