Pablo Thrailkill Castelaz

Benefit Concert Raises Funds For Cancer FoundationJeff Castelaz, co-founder of Dangerbird Records, started an online blog when his 4-year-old son Pablo Thrailkill Castelaz was diagnosed with bilateral Wilms Tumor, a rare form of childhood cancer. Butch Walker and the Black Widows and several other artists performed at a recent benefit for Pablove, the charity named in Pablo's memory.