Best-bets for Dec. 21: young pop … and a master at 98
1) “iHeartRadio Jingle Ball,” 8-10 p.m., ABC. Holiday music gets a brisk, pop-music feel from Olivia Rodrigo (shown here in a previous concert), Niall Horan, Sza, Sabrina Carpenter and more. There’s Pentatonix, OneRepublic, Jelly Roll, AJR, Flo Ridda, Melanie Martinez, David Kushner, Doechii, Paul Russell and Big Time Rush. And alongside that youthful bunch, Cher, 77, performs “Believe,” her hit from 25 years ago. Read more…