Why? + Sarah Jaffe

Northside Festival. Why? has ties to the alt-hip-hop scene, but really the group is a quirked-up, tripped-out indie-pop outfit whose frontman, Yoni Wolf, just happens to boast respectable rhyming skills. Tonight the Berkeley, CA, group cobills with Sarah Jaffe, a soulful Texan singer-songsmith turned stylish electropopster.