Richard Goodall is about to make his return to the America’s Got Talent stage.

The janitor from Terre Haute, Indiana, has won hearts across the country, and he’s hoping to win the NBC reality competition show’s top prize later this month.

For his audition episode in May, Goodall performed a cover of Journey’s “Don’t Stop Believin’” that wowed the audience and convinced judge Heidi Klum to give him a Golden Buzzer, automatically advancing him to the live quarterfinals. In August, he sailed through the quarterfinals with a performance of Michael Bolton’s “How Am I Supposed to Live Without You,” earning enough fan votes to advance to the semifinals, which start Wednesday.

Here’s what you need to know about the America’s Got Talent semifinal rounds, when you can catch Goodall’s next performance and how you can vote to keep him in the competition.

When is the next episode of America’s Got Talent?

Although the show typically airs at 8 p.m. Tuesdays, the semifinals will begin at 8 p.m. Sept. 11 because of Tuesday night’s presidential debate. The live results show will air Thursday night at 8 p.m.

Which acts are performing in the America’s Got Talent semifinals?

These 12 acts have advanced to Wednesday’s semifinal round:

Ashes & Arrows (band)
Roni Sagi & Rhythm (dancer and dancing dog)
Richard Goodall (singer)
Kelsey Jane (aerialist)
Learnmore Jonasi (stand-up comedian)
Reid Wilson (singer)
Alex Sampson (singer)
Sky Elements (aerial drones)
Young Min (magician)
Solange Kardinaly (quick-change magician)
Brent Street (dance group)
Pranysqa Mishra (singer)

Which acts got the Golden Buzzer in AGT quarterfinals?

These acts received a Golden Buzzer during the quarterfinals round, automatically advancing them to the final stages of the show:

Hakuna Matata Acrobats (acrobatics group)
AIRFOOTWORKS (dance group)
Dee Dee Simon (singer)
Sebastian and Sonia (aerialists)

What did Richard Goodall perform in the AGT quarterfinals?

Goodall sang Michael Bolton’s “How Am I Supposed to Live Without You.” He dedicated the performance to his fiancée, Angie, who was unable to make the trip to Los Angeles when his audition was taped last spring but who was sitting in the audience for this performance.

How do the AGT live shows work?

Now that the four weeks of quarterfinals are over, the semifinals will determine who goes to the final two shows. During the semifinals, 12 acts will compete for six spots, with the finalists to be determined by fan votes. Those six acts will advance and compete with the Live Golden Buzzer recipients in the show’s final rounds.

When is the AGT finale?

The two-night Season 19 finale will take place Sept. 17 and 24.

How do I vote on America’s Got Talent?

Viewers are able to cast their votes until 7 a.m. the day after the show airs at nbc.com/agtvote or via the AGT app, available through Google Play and the App Store.

How many times can I vote on America’s Got Talent?

Viewers can vote up to 10 times per method, per voting period.