Some of the biggest country stars have a pretty big secret -- they aren't who you think they are!

It won't come as a huge surprise that Kid Rock isn't the name on the singer's birth certificate, but you might not know that many artists have adopted their middle names as their stage names ... and a few country stars' real names aren't even close to the names by which you know them (we're looking at you, Wynonna Judd, Patsy Cline and Shania Twain)!

Check out our gallery above to find out what Garth Brooks', Tim McGraw's, LeAnn Rimes' and Eric Church's mamas called them.