The Perfect Christmas Party Playlist

You’ve got the presents wrapped, dinner in the oven, decorations just so – but oh no! What about the tunes?

Nick Lachey and The Sing-Off Are Back

Just in time for the holidays, Nick Lachey has returned to host The Sing-Off, which he calls “a feel-good show in a feel-good time of year.”

“The great thing about The Sing-Off is that it’s given such a faith to cappella music that it inspires groups out there to actually form for the show,” Lachey tells PEOPLE. “[It’s] great to see new groups and new talents inspired by what groups of the past have done at this point.”

Listen to YouTube Sensations Pentatonix's Brand-New Song, 'Rather Be'

When a cappella singers Pentatonix won Season 3 of NBC’s The Sing-Off in 2011, they had no idea that they were soon destined to become major YouTube stars.

But three years and more 560 million views later, their digital channel now has more subscribers than Beyoncé’s.

Nick Lachey Checks Out an A Capella Concert

Nick Lachey and wife Vanessa Minnillo took in an a capella show by Straight No Chaser at Cincinnati’s Taft Theatre. And it was a family night: the newlyweds were joined by Drew Lachey and his wife Lea. During intermission, the guys headed backstage to meet the group where they chatted about, among other things, Nick’s music-themed reality show The Sing-Off. Cara Lynn Shultz

The Sing-Off Winner: Revealed!

The Sing-Off, NBC’s a cappella competition show, signed off Monday, with the three finalists – Pentatonix, Urban Method and the Dartmouth Aires – battling it out for the grand prize of $200,000 and a recording contract with Sony Music.

In the end, Pentatonix, a quintet from Arlington, Texas, was crowned the winner of the show’s third season.

“From the beginning, you guys blew me away … and you continue to do it. Amazing,” gushed judge Shawn Stockman of Boyz II Men.

The Sing-Off Sends Top Three Groups to Finale

With the finale just around the corner, the top four a cappella groups made sure every note counted on Monday’s episode of The Sing Off.

The vocal bands were challenged to perform a “mastermix” for their first song of the night, combining two songs from two different artists into one seamless medley.