Lady Antebellum, Martina McBride, and Darius Rucker For MDA Labor Day Telethon

The special performances were taped during their Grand Ole Opry live performances on Tuesday.

In addition to performing, hit-makers Lady Antebellum, Martina McBride, and Darius Rucker chatted with MDA National Goodwill Ambassador Abbey Umali, the 12-year-old dynamo so instrumental in reminding business and civic leaders why it's important to help MDA speed research seeking treatments and cures for progressive muscle diseases affecting more than a million Americans.

"We're pleased that country music's most famous stage was able to help create truly memorable segments for the MDA Labor Day Telethon," said Opry Vice President and General Manager Pete Fisher. "Lady Antebellum, Martina and Darius transformed their Opry performances into must-watch television to help advance MDA's lifesaving mission."

"It's been an unbelievable year for us," said Hillary Scott of Lady Antebellum, the country group that recently won five Grammy Awards for its hit song, Need You Now. "Charles, Dave and I always have a great time performing at the Opry, and this one was extra special since it will be included in the MDA Telethon on Labor Day. It warms our hearts to be part of the nearly 50-year tradition that means the world to families living with muscular dystrophy."

Superstar Martina McBride, who in 2004 helped fulfill a wish for a young girl with muscular dystrophy and has previously made MDA Telethon appeals, said, "I encourage everyone to tune in to the Telethon and support the Muscular Dystrophy Association. MDA sends thousands of kids with muscular dystrophy to magical week-long summer camps each year, funds worldwide research and maintains nearly 200 clinics to help families across the U.S. It's important we continue to help MDA help so many others."

Having made a special connection with Darius Rucker during the March Country Radio Seminar in Nashville, MDA's Abbey Umali beamed when Rucker asked her to join him yesterday in singing his 2010 Billboard No. 1 single Come Back Song. "Abbey rocked the house on Come Back Song," said Rucker. "I'll long remember this duet, and I hope it will be particularly powerful for the tens of millions watching the MDA Telethon at home."