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The singers settle into sound booths and hear their potential bandmates perform live. Will they make a musical match — or will their personalities clash?

As more singers await their fate, one vocalist makes a career-defining decision. A new band is born, and AJ brings in Nicole Scherzinger as a mentor.

Options dwindle for those who haven't found a band yet. As more musical alliances emerge, two groups take the stage for their formation performance.

A contestant goes home in tears when a new group locks in. Can a boy band find their fourth member? One singer without a band stirs up suspense.

Six freshly formed bands move in together to test if they can cohabitate in harmony. At their first look performance, they finally see their competition.

What's in a name? The bands must decide before the showcase. A budding romance puts one group at risk; Kelly Rowland and Liam Payne join as guest judges.

The bands showcase their skills before a live studio audience for the first time. As elimination looms, one vocalist's power moves strike a sour note.

Bigger stage, bigger crowd: As the stakes rise, pressure mounts. The bands lay it all on the line, leaving their future up to the audience to decide.

One contestant faces a singer's worst nightmare: vocal issues. In a bold move, a group changes their song at the last minute. Will it pay off?

Fueled by a surprise boost of support, the three final bands give powerhouse performances. Who will be crowned winner — and who will face the music?