Justin Bieber, Taylor Swift may bring holiday spirit to MSG show

At first blush, Z100's Jingle Ball has little to do with the "reason for the season." A radio station-sponsored concert featuring Justin Bieber, One Direction and Taylor Swift would sell out Madison Square Garden any time of year, yuletide spirit or not. But since the concert is in December and has the holiday pun in the title, it should be asked: Which performers are in line for Santa's largesse, and which are destined for a morning of coal-filled stockings?