While Andre 3000 of Outkast drew praise from much of the country for his performance during Sunday night’s Grammy Awards, some Native groups are not happy.Some Indian groups are calling for a boycott of the network, deeming Andre 3000’s neon green Native American attire offensive.The rapper and backup dancers wore green buckskin dresses and green buckskin leggins.A tipi with smoke billowing out of it was used as a background prop during the performance.One board member of the Native American Cultural Center in San Francisco called the performance the “most disgusting set of racial stereotypes aimed at American Indians…ever seen.”Andrew Brother Elk, chair of the cultural center, filed a formal complaint with the FCC.A spokesperson for CBS issued an apology, saying the network was “very sorry if anyone was offended by the performance.”