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Every time I see a picture of Kellie Pickler, with her adorably short blond hair, I think of Summer. Not the season. The friend. Summer Holt Miller is Pickler's pal who was diagnosed with breast cancer last year, and the two friends shaved their heads in October when Miller was about to start chemotherapy. The awareness this created has been inspiring and international. "I'm overwhelmed at the support she's been given from all over the world," Pickler told CMT Radio. "It's amazing to get on Facebook and Twitter and know someone from Brazil or Australia knows her testimony and knows her story and are praying for her. And all the prayers are definitely working because she's doing great." You can see Pickler's pixie cut in the official photos for her upcoming debut on Dancing With the Stars, where she will partner up with Julianne Hough's brother Derek.