CHICAGO (AP) — The Muscular Dystrophy Association’s nationally broadcast annual telethon has raised about $52.3 million in contributions over the Labor Day weekend.

The two-hour “MDA Show of Strength” aired Sunday on ABC, and the organization says it will continue accepting donations through Monday. A final tally’s expected Tuesday.

MDA President and CEO Steven M. Derks says it was inspiring to see so many celebrities, musicians and athletes join forces to help raise money for the treatment of muscular dystrophy and related diseases.

Grammy-winner LeAnn Rimes, Rascal Flatts and hip-hop star Jason Derulo were part of the show’s lineup this year, along with other entertainers.

The telethon was the fourth since comedian Jerry Lewis’s 45-year role as host ended. The 2013 telethon raised more than $59 million.

Copyright 2014 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.