13. It's interactive. The show has its own social media correspondent — this year it's Christina Milian. Viewers can interact with the show and the hosts on Twitter, live-tweeting their reactions with the hashtag #TheVoice, and those tweets are read on-air during special segments on the live shows.

14. It's consistent. Unlike some other talent shows on television — "America's Got Talent," for example — singers compete against singers. None of this pitting gymnasts against tap-dancers, or magicians against opera singers.

15. It's better than "American Idol." No smarmy Ryan Seacrest. No sleazy Steven Tyler. No Jennifer Lopez. No early rounds spent culling out the delusional untalented. Every singer who competes in "The Voice" can, in fact, sing — and well. Heck, it's better than most TV. What else are you going to watch on Monday nights — "Two-and-a-Half Men"?

How It Works

During the blind-audition process, which lasts several episodes, contestants sing for the judges, who have their backs turned. Once the judges have selected their teams, contestants compete internally against one another and the judge decides who advances. In later battleground rounds, the television audience determines who progresses.

When one person remains in each team, the four compete against each other. The final winner is determined by equal parts judges' scores, and audience votes.

What's Different

The second season of "The Voice" is longer than the first; the blind audition and battleground rounds are extended, and each team has 12 members instead of eight. The show's time slot has moved, too, from Tuesdays and Wednesday to 8-10 p.m. on Monday nights. "The Voice" has a new social media correspondent, as well, as Christina Milian replaces Alison Haislip.

The Judges

Adam Levine: Front man for the rock group Maroon 5 and coach of last year's winning contestant Javier Colon — the man Adam told, quite frankly, he thought was a woman. Adam's voice is a bit in the high range, so he's good with voices as surprising as his. The dynamic between the judges seems to rest largely on Adam - whether it's teasing Cee Lo or Christina or arguing with Blake. It's all in good fun.

Cee Lo Green: One-half of Gnarls Barkley, solo artist and as adorable as a cartoon character. Like Adam, Cee Lo's good with taking and training off-beat talents — weird and strange diamonds in the rough — like him. He and Adam have the best rapport, equal parts playful and sincere.

Christina Aguilera: Pop musician, and the only female judge - which she reminds the audience of, often. While in the judge's chair, she spends a lot of time bickering with the boys and touting her team's superiority. As a coach, she's empowering and fierce. Last season, her team was almost exclusively women.

Blake Shelton: Country singer and coach of last year's runner-up, Dia Frampton (see Q&A, Page 47). Blake's homegrown, down-to-earth attitude makes him the most nurturing of the judges, but in the judge's chair, his best feature is the dynamic he has with Adam. The two butt heads and argue from opposite ends of judges' row, often talking over — and drowning out — Christina.