This weekend on The iHeartRadio Countdown with Mario Lopez we're having a mini Glee reunion! First Lea Michele stops by to talk about her upcoming new album and tour then Darren Criss and his brother Chuck stop by! They have a brand new band together called Computer Games and just released their debut EP! So we'll catch up with them and countdown the top 20! Can Ed Sheeran remain at #1 for a 12th straight week? Tune in!