Gus somehow gets Carole and Tuesday a gig on the main stage at a huge festival. The catch: they're a standby act for the famous, difficult Joshua.

The Mars Brightest semifinals begin with Ertegun as guest judge. Tao tells Angela to change her song, and Cybelle's visit raises Carole's suspicions.

Carole and Tuesday are an instant sensation. But fame has its drawbacks, and they face tough choices about the next stage in their career.

The single charts, and Gus decides they'll play South by Southwest. On the way home from rehearsal one night they meet Carole's childhood idol, Flora.

Tao offers to track down Angela's stalker once Dahlia tells him all about it. Things come to a head as Angela takes the stage at the Cydonia Festival.

A suggestion from Crystal inspires the duo to write a new song for their Grammys performance. Dahlia's condition puts Angela's attendance in doubt.

Tao appears to tell Angela the truth. With Carole & Tuesday's first album finished, the supergroup performance is scheduled for New Year's Eve.