Seniors can get groovy with Musical Fitness, a new city of Mercer Island class that will rev up at 10 a.m. on Tuesdays from Jan. 16-March 26 at the Mercer Island Community and Event Center.

The fee is $104 for the 10-week upbeat dance fitness class, which will feature classic hits from the 1940s, ’50s and ’60s.

“Whether seated or standing, everyone will enjoy a great workout for the mind and body,” reads a city event flier.

To register, visit http://tinyurl.com/4jkzv2zu