C. Delores Tucker dedicated much of the last few years of her life to condemning sexually explicit lyrics in rap and hip-hop tracks, citing a concern that the lyrics were misogynistic and threatened the moral foundation of the African American community. by Martha IrvineAP National Writer Until this summer, few people outside the R&B music scene knew who Robin Thicke was. Then came his new song “Blurred Lines” and an unrated online video to promote it. “You the hottest b—- in this place!” Thicke sings, as topless models playfully dance around him. The video has stirred a debate, with detractors complaining that it’s too racy and degrading to women. Thicke insists he meant no offense — and the song, meanwhile, has become the No. 1 hit of the summer.