When Tamia came across a video on YouTube of people line dancing to her 2006 song “Can’t Get Enough of You,” she and her husband, NBA legend Grant Hill, decided to join in the fun and learn the dance.

Quinton Dais, left, and Ny’Sean Isaac line dance at S Bar in Columbia, S.C., on Jan. 30. When Tamia came across a video on YouTube of people line dancing to her 2006 song “Can’t Get Enough of You,” ...