The Backstreet Boys played their first show at the Sphere in Las Vegas. Comedian Oliver Pocher was also there, sharing numerous impressions on Instagram.

The Backstreet Boys kicked off their Sphere residency, blending elements of the past and future brilliantly. We take you ...

The American Idol champ will do a rotating Kellyoke cover every night, and she chose a Dolly Parton-written Whitney Houston classic for her debut.