The plot thickens in the case of the missing Barb from Sunday’s Hot 97 Summer Jam concert. Last night Nicki Minaj called in to Hot 97 to clear the air with Funkmaster Flex about not performing after feeling disrespected by Peter Rosenberg. Per Idolator.com Nicki called in to 97.1′s competitor station, 105.1, to speak to The Breakfast Club this morning, hours after her 55 minute radio interview with Flex. The rivalry between the two New York hip-hop and R&B stations runs deep. Don’t believe us? Ask former archenemies Nas and Jay-Z. Read more…