She moved to Italy for continuing her training at the Arrigo Boito Conservatory in Parma, the Accademia Chigiana in Siena and finally with Raina Kabaivanska at the Istituto Musicale Vecchi-Tonelli in Modena.
Following her appearances as Musetta in La bohème and Gilda in Rigoletto in youth productions at the Teatro Regio in Parma and as Leonora Il trovatore in a concert performance at the Sarzana Opera Festival, Yeo made her debut as Cio-Cio-San in Madama Butterfly in 2013 at the theatres in Salsomaggiore Terme, Vigevano and Fiorenzuola d'Arda.
She made her role debuts as Fiordiligi in Così fan tutte and as Liù in Turandot in 2014.
In 2015, she made her Salzburg Festival debut by singing her first Elvira in Verdi's Ernani (concert performance under the direction of Riccardo Muti).
Yeo has already performed extensively in concert, appearing with the Filarmonica Arturo Toscanini, the Bulgarian National Philharmonic and the Orchestra of the Teatro Regio in Parma.