Tonight Carrie Underwood, Dierks Bentley, Lee Brice, Luke Bryan, Merle Haggard, Hunter Hayes, Toby Keith, Miranda Lambert, Tim McGraw, Kellie Pickler, Blake Shelton, George Strait, Keith Urban, Eli Young Band, Florida Georgia Line, Lady Antebellum, Rascal Flatts and The Band Perry take part in ACM Presents: An All-Star Salute to the Troops

Carrie will perform "Keep Us Safe," which she wrote especially to honor our men and women in the military. The song will be available for download with the money going to the ACM's charitable arm, Lifting Lives. The show airs at 8 p.m.  on CBS.

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