O que será (Portuguese: "What Will Be") is a live album by Italian pianist Stefano Bollani and Brazilian bandolinist Hamilton de Holanda recorded in Belgium in August 2012 and released on ECM a year later.

The AllMusic review by Thom Jurek awarded the album 4 stars stating "O Que Será is a one of a kind dialogue between two musicians who understand that music is an adventure; they submit themselves to it fully with a wealth of ideas and bring out the heat, intimacy, and humor in these tunes.

"[2] The Guardian's John Fordham noted "The Italian pianist Bollani and the Brazilian De Holanda, who plays the bandolim (a 10-string mandolin), have worked up a largely South American repertoire of tangos and love songs, variously treating them with dazzling virtuosity, humour and captivating tenderness...

"[3] All About Jazz correspondent Ian Patterson wrote "The chemistry between Bollani and de Holanda and the almost inexhaustible material at their disposal clamor for a follow-up... O Que Será marks a high point in the discographies of both musicians.

"[4] On the same site John Kelman commented "The inclusion of audience reactions throughout the show help make O Que Sera a breathtaking 54-minute break from life's trials and tribulations; as close to being there as any audio recording can be, it's proof positive that serious music can be fun, too.