The Voice 8 p.m., Channel 7

Billie Joe Armstrong has gotten a bit of attention lately, and not just because of the new Green Day albums. He had an onstage meltdown at the iHeartRadio Music Festival in Las Vegas, and then he went to rehab. But Armstrong (above) will nonetheless appear as a mentor on this music contest, since his appearance was taped early in the summer. He’s on Team Xtina. Other advisers: Mary J. Blige, Michael Buble, and Rob Thomas.