After entertaining millions for four decades, humourist and bestselling author Garrison Keillor will retire as host of public radio's A Prairie Home Companion this summer. Mandolin ace Chris Thile of the bands Punch Brothers and Nickel Creek will step in as the first full-time replacement host in October.

Prince seems to be shedding his reclusive reputation: recently the superstar has hosted late-night jam sessions where he serenaded Madonna, celebrated the Minnesota Lynx's WNBA championship, showcased his latest protg Judith Hill and invited hundreds of fans to a concert at his Paisley Park Studios.