Ring in the holiday season with three-time Grammy winners Pentatonix! The four-piece who found success through NBC's The Sing-Off, have been at the forefront of the recent a capella revival. With record-breaking albums behind them, the kings and queen of acapella jingle across the country on their 'Hallelujah! It's a Christmas Tour!'.

The world's first country a cappella group had a phenomenal start to their career, winning NBC's The Sing-Off in 2013. Since then they've released five studio albums, including Country Evolution, which hit the No.4 spot on the Top Country Albums chart and featured unique Home Free takes on Dolly's '9 to 5', and 'The Devil Went Down to Georgia'.

The Fab Four are one of the world's most in-demand Beatles tribute acts! They're note perfect and the attention to detail is so impressive, you'd be forgiven for thinking you were in the presence of the real thing. From mop-tops to Wings, let the Fab Four take you on a journey through the life of a band that still thrill, five decades after they split up!