AceShowbiz -

After their appearance at CMT Music Awards and Grand Ole Opry last week, "American Idol" graduates Scotty McCreery and Lauren Alaina continued their invasion in the country music community by stopping by CMA Music Festival. This time around, each of them made a surprise performance by teaming up with one country music senior.

Scotty accompanied Josh Turner when 33-year-old Josh delivered "Your Man" for the screaming fans at Nashville's LP Field. "I never would've expected all this. You hear about Fan Fair, but this is the first time I've been here, so you see all this stuff, it's been cool," Scotty said about the gig. "I'm playing for 70,000 people tonight. I never dreamed of that."

Lauren who shared the stage with Martina McBride in "Anyway" echoed Scotty's opinion when asked about the concert. "I have no idea what will happen... I'll probably be extremely nervous right before I go out there," she gushed. "Thank goodness I'm with Martina, because if I mess up, she can pick me up."

The other musical guests at the Saturday, June 11 music festival included Little Big Town, Clint Black, Big & Rich, Gretchen Wilson, Trace Adkins, Rascal Flatts, Chris Young and Thompson Square.