Kelsea Ballerini celebrated the 100th anniversary of the Grand Ole Opry with a moving cover of Barbara Mandrell ... eventually reaching No. 1 on the Billboard Hot Country Singles chart.

But thank God she was back again for the episode we were in the studio audience for, which aired March 20, just in time to celebrate the show’s landmark 1,000th ... down cover of Whitney Houston ...

Mistakes were (allegedly) made during the Halo TV series, which ran for two seasons ... The binging then went full force with those viewers racking up 32.1 million hours viewed in that same ...

Formula 1 racing has a reputation of danger extending ... something that generated quite a bit of controversy at first: the "Halo," a ring-shaped hoop circling above the driver's head.