Ella Langley's Dandelion Tour will keep blooming into the fall. The "you look like you love me" superstar is adding 21 new dates to her first headlining arena run, starting Aug. 20 in Green Bay, Wisconsin, and going through Oct. 31 in St. Paul, Minnesota. Along the way, the Alabama native will play two nights at Auburn's Neville Arena; her first headlining stop at Colorado's Red Rocks Amphitheatre; and two nights at LA's Greek Theatre. Fans can …